Why is it so important to learn these basic chords in Los Angeles?
Chords form the backbone of most rock and pop songs, and provide the harmonic accompaniment to the melody and instrumental solos.Rhythm guitar based on basic chords provides many of the most memorable rock riffs… think AC/DC’s “Back in Black” or The Who’s “Won’t Get Fooled Again” in Los Angeles. What’s really amazing is that by learning no more than 10 to 15 basic guitar chords, you will be equipped to play thousands of rock and pop songs!First let’s establish the definition of a chord. A chord is three or more different musical notes played together.
Jump to navigation Jump to search Guitar Center is an American music retailer chain. It is the largest company of its kind in the United States, with 269 locations. Its headquarters is in Westlake Village, California. Guitar Center oversees various subsidiaries including Music & Arts, GuitarCenter.com, LMI, Giardinelli, Musician.com, Private Reserve Guitars, Woodwind and Brasswind, Music 123, and used to own Harmony Central until its April 2015 sale to Gibson. Founded in Hollywood by Wayne Mitchell in 1959 as The Organ Center, a retailer of electronic organs for home and church use, it became a major seller of Vox electric guitars and guitar amplifiers, changing its name to The Vox Center in 1964. Toward the end of the 1960s, Vox—whose sales derived largely from its association with The Beatles, who made extensive use of its amplifiers—fell in popularity as Marshall amplifier users Eric Clapton and others captured musicians' imaginations. Accordingly, Mitchell once again changed the name, this time to Guitar Center. Guitar Center West LA, Pico & Westwood, Los Angeles The popularity of rock and roll in the 1970s allowed Mitchell to open stores in San Francisco and San Diego, as well as several suburbs of Los Angeles. Ray Scherr, previously the general manager of the San Francisco store, purchased the company from Mitchell in the late 1970s. Scherr owned and operated it until 1996 from its Westlake Village headquarters. Although synthesizer-driven disco and new wave pop sapped rock's audience in the late 1970s, the 1980s "guitar rock" revival led by Van Halen and a concurrent influx of Japanese-produced instruments brought guitar sales to unprecedented levels. Guitar Center took full advantage of this sales bonanza, and by the end of the decade began an ambitious program of expansion across the entire United States. Using its size as leverage over the musical instrument business, it developed into the largest musical instrument retailer in the country, and made an initial public offering of stock in 1997. In 2005, Guitar Center, Inc., started The Fender Music Foundation, a nonprofit organization that supports music education. Activision partnered with Guitar Center in 2006; all purchases made during game play of Guitar Hero, beginning with the second installment, are made in a virtual Guitar Center store. On June 27, 2007, Guitar Center agreed to a $1.9 billion buyout from Bain Capital, totaling $2.1 billion including debt. The deal was led by Goldman Sachs and amounted to a per-share price of $63, or a 26% premium on the June 26 closing price. The deal was approved by shareholders on September 18, 2007, and closed October 9, 2007. In mid-2009 Guitar Center opened the first of its rehearsal and lessons studio facility in Woodland Hills, California. The eight studios with full backline range in size from 350-550 square feet. Guitar Center also hosts annual events such as the Drum Off, King of the Blues, contests, and artist appearances throughout the nation. In 2011, Guitar Center added equipment rentals to the store in San Diego, California. Since, Guitar Center has opened rental departments in ten other existing locations and plans to offer rental services in various other stores across the country. In May 2013, Standard & Poor's cut its debt rating on Bain Capital-owned Guitar Center Holdings Inc to "junk bond" status, citing struggles with "weak operating trends." The corporate credit rating on the company dropped from 'B-' to 'CCC+'. In April 2014, Ares Management took a controlling stake in Guitar Center. Bain Capital, Guitar Center's former owner, retained partial ownership of the company, along with representation on the board. According to Mike Pratt, the retailer's previous chief executive, the deal will reduce Guitar Center's total debt and provide it with the resources to expand its footprint and invest in its business. In August 2014, Guitar Center opened a new 28,000 square foot flagship location in the heart of Times Square in New York City. The grand opening included a celebratory concert featuring the band The Roots. The Guitar Center Times Square location is now the permanent home of Eric Clapton's Blackie Fender Stratocaster, which Guitar Center purchased at a Christie's Crossroads Centre auction in 2004 for $959,000. In April, 2017, Moody's Investors Services revised the outlook on Guitar Center's B2 rating to negative, meaning it could downgrade the rating further into junk territory in the medium tern. The concern is that Guitar Center may be overwhelmed by its $1 billion debt in the face of flat sales in the musical instrument industry as a whole. First debuting in 2010, each episode of Guitar Center Sessions showcases exclusive live performances by noteworthy artists captured in hi-definition at Guitar Center's iconic Hollywood, CA location. Some past guests have included Linkin Park, Saint Motel, Wiz Khalifa, Billy Idol, The 1975, Sum 41, Weezer, Smashing Pumpkins, Peter Gabriel, Alanis Morissette, 311, Megadeth, Snoop Dogg, Soundgarden, Seether, The Cult, CAKE, Jakob Dylan, Blondie, Rodrigo y Gabriela, Bush, Ben Folds Five, Korn, Joan Jett, Cheap Trick, Skylar Grey, Peter Frampton, Frank Turner, Coheed and Cambria, and Jane’s Addiction. Guitar Center Sessions is hosted by Nic Harcourt, and was created, developed and produced by Guitar Center exclusively on DirecTV. Guitar Center Sessions has won several awards, including a Lumiere Award from the International 3D Society for the episodes featuring Jane's Addiction and Peter Gabriel. To celebrate their 50th anniversary, Guitar Center asked Linkin Park to play a show on October 24, 2014; the performance first aired on DirecTV on December 5, 2014. The At: Guitar Center web series (formerly At: Guitar Center podcast) features interviews and intimate performances with some of the biggest names in music. Some past guests have included Travis Barker, Sevendust, T-Pain, Joe Bonamassa, The Crystal Method, Buddy Guy, Daughtry, Jimmy Cliff, Meiko, Rza, Steve Vai, Joe Satriani, Brandi Carlile, and Minus the Bear, The podcasts are available on the iTunes, Zune and BlackBerry networks and on the Guitar Center website. The show is hosted by Nic Harcourt. Connections Made by Guitar Center, a collaboration between 88.5 KCSN Los Angeles and Guitar Center, was a weekly one-hour radio program featuring fresh, new music from across the globe and musical spectrum. Signed or unsigned, the show offered an electric mix of progressive and innovative artists. The show was hosted by radio host and taste maker, Nic Harcourt. The “Guitar Center Legends Collection” consists of four classic guitars made famous by music legends Eric Clapton, Stevie Ray Vaughan, and U2’s The Edge. Guitar Center purchased Clapton’s “Blackie” Fender Stratocaster, his vintage Gibson “ES-335,” and Vaughan’s “Lenny” Stratocaster for over $2.4 million from the Clapton Crossroads Centre charity auction at Christie's New York in 2004. They added The Edge’s cream white Gibson Les Paul Custom after purchasing it for $240,000 at the Music Rising Charity Auction in 2007. Over the years, the collection has been exhibited in one-of-a-kind, “Legends’ Collection” display cases, which provide high level protection and climate control as the instruments tour prestigious musical events and key Guitar Center locations, such as “Guitar Center Road to Crossroads” held at Madison Square Garden in conjunction with Clapton’s Crossroads Guitar Festival in April 2013. In August 2014, Clapton’s Blackie and ES-335 were moved to their new permanent location at Guitar Center’s Times Square flagship location. Clapton's “Blackie” was purchased by Guitar Center for $959,500. Clapton’s Cherry Red Gibson “335,” purchased for $847,500, was used to record Cream’s versions of “Badge” and “Crossroads (from their final live performance in November 1968),” as well as many other historical performances, during his 40 years of ownership. Steve Ray Vaughan’s “Lenny,” which was purchased for $623,500, was used to record his classic love songs including “Lenny” and “Riviera Paradise.” All of the proceeds from these three guitars purchased by Guitar Center were for the benefit of Clapton’s Crossroads Centre charity. The Edge's cream colored 1975 Les Paul Custom (faded from its original white) found fame as a go-to guitar for stage and studio on many of U2’s most famous recordings and performances. In 2005, The Edge partnered with producer Bob Ezrin, Gibson and the Guitar Center Music Foundation (now known as the Fender Music Foundation) to establish Music Rising, a charity founded to benefit musicians whose lives were torn apart by Hurricane Katrina. In 2007, he donated this prized guitar to be auctioned for the cause. The winning bid was $240,000 from Guitar Center ($288,000 including Buyers Premium). Since 1988, Guitar Center has held an annual search for the next great undiscovered drummer. Developed to spotlight the drumming community, Guitar Center’s Drum-Off is the music retailer’s longest running artist-discovery program, providing an outlet for drummers to be recognized for their skill and attain success in their field. For over a quarter of a century, the program has unearthed some of the day’s top undiscovered drummers and provided a platform for established drummers to be acknowledged. Guitar Center’s Drum-Off breaks down into three rounds of store preliminary competitions at 250+ Guitar Center locations nationwide. Every contestant is allowed five minutes of set up time and three minutes to perform. One winner from each store finals competition is chosen to move up to the quarterfinals, (hosted at 30 Guitar Center locations nationwide), followed by semi-finals at five store locations at which point performance time is increased to allow five minutes to each contestant. The winners from these five semifinal locations convene in Los Angeles, CA to compete in Guitar Center’s Drum Off finals in front of a live audience and a panel of celebrity judges. Each contestant is required to perform on a 5-piece acoustic drum kit complete with hardware, cymbals, cowbell, throne and the option to incorporate the Roland SPD-30 Octapad into the competition kit. As of 2016 however, the SPD-30 Octapad will no longer be part of the competition kit. All contestants are evaluated by a panel of independent and credible judges on the following criteria: skills & technique, groove, originality, stage presence, and overall performance. In years past, some of the world’s most renowned drummers have participated in and supported Guitar Center’s Drum-Off, including: Terry Bozzio, Aaron Spears (Usher), Dennis Chambers (Parliament/Funkadelic), Chad Smith (Red Hot Chili Peppers), Steve Gadd, Questlove (The Roots), Travis Barker (Blink-182), Tommy Lee (Motley Crüe), Dave Lombardo (Slayer), Carmine Appice, John Tempesta (The Cult), Taylor Hawkins (Foo Fighters), Steve Smith, Gavin Harrison, Jojo Mayer, Thomas Lang, Josh Freese (Nine Inch Nails, A Perfect Circle), José Pasillas (Incubus), Billy Cobham, Nicko McBrain (Iron Maiden), Stephen Perkins (Jane’s Addiction), Danny Carey (Tool), Brann Dailor (Mastodon), John Blackwell, and more. According to their website, and as of 2017, Guitar Center will no longer sponsor the annual drumoff. Instead, Guitar Center announced it will create a community outreach program specifically geared toward drummers. RockWalk RockWalk detail The Sunset Boulevard location in Los Angeles hosts Hollywood's RockWalk, a hall of fame honoring musical artists. Artists are invited to place their handprints into cement blocks that are put on display at the Guitar Center. Some past inductees have included B'z, Eric Clapton, AC/DC, Aerosmith, Alanis Morissette, B.B. King, Black Sabbath, Carlos Santana, Cheap Trick, Def Leppard , Dick Clark, Ernie Ball, Herbie Hancock, Iron Maiden, James Brown, Jerry Lee Lewis, Jimi Hendrix, Jimmy Page, Joe Satriani, Bonnie Raitt, Johnny Cash, KISS, Les Paul, Little Richard, Lynyrd Skynyrd, Melissa Etheridge, Nancy Wilson, Slash, The Doobie Brothers, The Wrecking Crew, Van Halen, Simon Kirke, as well as countless others. A Guitar Center retail store in Houston In 2000, Guitar Center purchased mail order and Internet retail house Musician's Friend for $50 million, asserting that the merged company was the world's largest seller of musical instruments. Musician's Friend became a wholly owned subsidiary that was headquartered in Medford, Oregon until 2011, when Musician's Friend's headquarters operations were gradually consolidated into Guitar Center's facilities in Westlake Village, California. In 2005, Guitar Center Inc. acquired Music & Arts, the largest school music dealer in the United States, and merged their subsidiary band and orchestral chain American Music Group into Music & Arts (as the company was renamed). Music & Arts was founded in 1952 in Bethesda, Maryland and sells band and orchestra instruments, guitars, keyboards, drum sets, printed sheet music, and related supplies. In the summer of 2006, Guitar Center purchased four stores in Texas from the popular South Texas and Central/South American company, Hermes. In February 2007, the direct response division of Guitar Center, Musician's Friend, purchased assets of the Indiana-based company Dennis Bamber, Inc., which included leading band and orchestra retailer, Woodwind and Brasswind, plus Music 123 and Lyons Music. There was a television series known as Guitar Center Sessions, which featured artists such as 311, Bad Religion, and Smashing Pumpkins.
In the case of the guitar in , this means that at least three strings are strummed or plucked simultaneously to sound three or more notes. Since the guitar has six strings, the maximum numbers of notes in a guitar chord is six. All chords can be placed in one of three groups based on the musical structure of the chord: Major, Minor, or Seventh.
Gibson Acoustic Guitar in Los Angeles
Should your guitar be subjected to cold temperatures in Los Angeles , say in the rear of an automobile, for an extended duration (even in the hard shell case), never pull the guitar out and expose it to room temperatures as soon as you get it inside. The guitar will need to have time for it to slowly adapt to the new warm temperatures, so leave it in the case until it has had enough time to do so.
Jump to navigation Jump to search An instrument amplifier is an electronic device that converts the often barely audible or purely electronic signal of a musical instrument into a larger electronic signal to feed to a loudspeaker. An instrument amplifier is used with musical instruments such as an electric guitar, an electric bass, electric organ, synthesizers and drum machine to convert the signal from the pickup (with guitars and other string instruments and some keyboards) or other sound source (e.g, a synthesizer's signal) into an electronic signal that has enough power, due to being routed through a power amplifier, capable of driving one or more loudspeaker that can be heard by the performers and audience. Combination ("combo") amplifiers include a preamplifier, a power amplifier, tone controls, and one or more speakers in a cabinet, a housing or box usually made of hardwood, plywood or particleboard (or, less commonly, moulded plastic). Instrument amplifiers for some instruments are also available without an internal speaker; these amplifiers, called heads, must plug into one or more external speaker cabinets. Instrument amplifiers also have features that let the performer modify the signal's tone, such as changing the equalization (adjusting bass and treble tone) or adding electronic effects such as intentional distortion/overdrive, reverb or chorus effect. A Fender "combo" amplifier. The combination amplifier is a preamplifier, power amplifier and tone controls and one or more loudspeakers or drivers mounted in a portable wooden cabinet. This amp's sound is being picked up with a microphone in a recording studio. Instrument amplifiers are available for specific instruments, including the electric guitar, electric bass, electric/electronic keyboards, and acoustic instruments such as the mandolin and banjo. Some amplifiers are designed for specific styles of music, such as the "traditional"-style "tweed" guitar amplifiers, such as the Fender Bassman used by blues and country music musicians, and the Marshall amplifiers used by hard rock and heavy metal bands. Unlike home "hi-fi" amplifiers or public address systems, which are designed to accurately reproduce the source sound signals with as little harmonic distortion as possible and without changing the tone or equalization (at least not unless the hi-fi owner adjusts it themselves with a graphic equalizer), instrument amplifiers are often designed to add additional tonal coloration to the original signal, emphasize (or de-emphasize) certain frequencies (most electric guitar amps roll off the very high frequencies), and, in the case of guitar amplifiers designed for electric guitar or Hammond organ, offer the capability to intentionally add some degree of "overdrive" or distortion to the tone. The two exceptions are keyboard amplifiers designed for use with digital pianos and synthesizers and "acoustic" instrument amplifiers for use with acoustic guitar or fiddle in a folk music setting, which typically aim for a relatively flat frequency response (i.e., no added colouration of the sound) and little or no distortion of the signal. Main article: Guitar amplifier A Vox AC30 used by The Beatles A guitar amplifier amplifies the electrical signal of an electric guitar (or, less commonly, with acoustic amplifiers, an acoustic guitar) so that it can drive a loudspeaker at sufficient volume for the performer and audience to hear. Most guitar amplifiers can also modify the instrument's with controls that emphasize or de-emphasize certain frequencies and add electronic effects. String vibrations are sensed by a suitable microphone or pickup, depending on the type of guitar. For electric guitars, strings are almost always made of metal, and the pickup works by electro-magnetic induction (these are called magnetic pickups; they are the most widely used type of pickup on electric guitars). Acoustic guitars do not usually have a built-in pickup or microphone, at least with entry-level and beginner instruments. Some acoustic guitars have a small condenser microphone mounted inside the body, which designed to convert acoustic vibrations into an electrical signal, but usually they do so from direct contact with the strings (replacing the guitar's bridge) or with the guitar's body, rather than having a membrane like general-purpose microphones. Acoustic guitars may also use a piezoelectric pickup, which converts the vibrations of the instrument into an electronic signal. More rarely, a magnetic pickup may be mounted in the sound hole of an acoustic guitar; while magnetic pickups do not have the same acoustic tone that microphones and piezo pickups can produce, magnetic pickups are more resistant to acoustic feedback. A small Gibson "combo" amplifier. Standard amplifiers, such as the Fender "tweed"-style amps (e.g., the Fender Bassman) and Gibson amps, are often used by traditional rock, blues, and country musicians who wish to create a "vintage" 1950s-style sound. They are used by electric guitarists, pedal steel guitar players, and blues harmonica ("harp") players. Combo amplifiers such as the Fender Super Reverb have powerful, loud tube amplifiers, four 10" speakers, and they often have built-in reverb and "vibrato" effects units. Smaller guitar amps are also available, which have fewer speakers (some have only one speaker) and lighter, less powerful amplifier units. Smaller guitar amps are easier to transport to gigs and sound recording sessions. Smaller amps are widely used in small venue shows (nightclubs) and in recordings, because players can obtain the tone they want without having to have an excessively loud volume. One of the challenge with the large, powerful 4x10 Fender Bassman-type amps is that to get the tone a player wants, she has to turn up the amp to too loud a volume. These amps are designed to produce a variety of sounds ranging from a clean, warm sound (when used in country and soft rock) to a growling, natural overdrive, when the volume is set near its maximum, (when used for blues, rockabilly, psychobilly, and roots rock). These amplifiers usually have a sharp treble roll-off at 5 kHz to reduce the extreme high frequencies, and a bass roll-off at 60–100 Hz to reduce unwanted boominess. The nickname "tweed" refers to the lacquered beige-light brown fabric covering used on these amplifiers. The smallest "combo" amplifiers, which are mainly used for individual practice and warm-up purposes, may have only a single 8" or 10" speaker. Some harmonica players use these small combo amplifiers for concert performances, though, because it is easier to create natural overdrive with these lower-powered amplifiers. Larger combo amplifiers, with one 12 inch speaker or two or four 10 or 12 inch speakers are used for club performances and larger venues. For large concert venues such as stadiums, performers may also use an amplifier "head" with several separate speaker cabinets (which usually contain two or four 12" speakers). A 3×6 stack of mock Marshall guitar cabinets for Jeff Hanneman of Slayer Electric guitar amplifiers designed for heavy metal are used to add an aggressive "drive", intensity, and "edge" to the guitar sound with distortion effects, preamplification boost controls (sometimes with multiple stages of preamps), and tone filters. While many of the most expensive, high-end models use 1950s-style tube amplifiers (even in the 2000s), there are also many models that use transistor amplifiers, or a mixture of the two technologies (i.e., a tube preamplifier with a transistor power amplifier). Amplifiers of this type, such as Marshall amplifiers, are used in a range of the louder, heavier genres of rock, including hard rock, heavy metal, and hardcore punk. This type of amplifier is available in a range of formats, ranging from small, self contained combo amplifiers for rehearsal and warm-ups to heavy "heads" that are used with separate speaker cabinets—colloquially referred to as a "stack." In the late 1960s and early 1970s, public address systems at rock concerts were used mainly for the vocals. As a result, to get a loud electric guitar sound, early heavy metal and rock-blues bands often used "stacks" of 4x12" Marshall speaker cabinets on the stage. In 1969, Jimi Hendrix used four stacks to create a powerful lead sound, and in the early 1970s by the band Blue Öyster Cult used an entire wall of Marshall Amplifiers to create a roaring wall of sound that projected massive volume and sonic power. In the 1980s, metal bands such as Slayer and Yngwie Malmsteen also used "walls" of over 20 Marshall cabinets. However, by the 1980s and 1990s, most of the sound at live concerts was produced by the sound reinforcement system rather than the onstage guitar amplifiers, so most of these cabinets were not connected to an amplifier. Instead, walls of speaker cabinets were used for aesthetic reasons. Amplifiers for harder, heavier genres often use valve amplifiers (known as "tube amplifiers" in North America) also. Valve amplifiers are perceived by musicians and fans to have a "warmer" tone than those of transistor amps, particularly when overdriven (turned up to the level that the amplifier starts to clip or shear off the wave forms). Instead of abruptly clipping off the signal at cut-off and saturation levels, the signal is rounded off more smoothly. Vacuum tubes also exhibit different harmonic effects than transistors. In contrast to the "tweed"-style amplifiers, which use speakers in an open-backed cabinet, companies such as Marshall tend to use 12" speakers in a closed-back cabinet. These amplifiers usually allow users to switch between "clean" and distorted tones (or a rhythm guitar-style "crunch" tone and a sustained "lead" tone) with a foot-operated switch. A 2 x 10" bass speaker cabinet stacked on top of a 15" cabinet, with separate bass amplifier "head" unit Bass amplifiers are designed for bass guitars or more rarely, for upright bass. They differ from amplifiers for the regular (and comparatively higher-pitched) electric guitar in several respects. They have extended low frequency response and tone controls optimised for bass instruments, which produce pitches of 41 Hz, in the case of a standard four-string electric bass or double bass, or even lower for five- or six-string electric basses. Higher-cost bass amplifiers sometimes include built-in bass effects, which are electronic effects units designed for electric bass or more rarely, for upright bass. Common built-in effects include audio compressor or limiter features, which help to keep the amplifier from doing unwanted distorting at high volume levels and potentially damaging the speakers; equalizers; and in some amps from the 1980s and more commonly in the 2000s, bass overdrive. Bass amps may provide an XLR DI output for plugging the bass amp signal directly into a mixing board or PA system. Larger, more powerful bass amplifiers (300 or more watts) are often provided with internal or external metal heat sinks and/or fans to help keep the amplifier cool. Speaker cabinets designed for bass usually use larger loudspeakers (or more loudspeakers, in the case of the popular 4x10" cabinets, which contain four 10" speakers) than the cabinets used for other instruments, so that they can move the larger amounts of air needed to reproduce low frequencies. Bass players have to use more powerful amplifiers than the electric guitarists, because deep bass frequencies take more power to amplify. As such, in a band in which the electric guitar player uses a 50 watt guitar amp, the bass player typically uses a 200 watt to 300 watt bass amp. While the largest speakers commonly used for regular electric guitar are 12" speakers, electric bass speaker cabinets often use 15" speakers. Bass players who play styles of music that require an extended low-range response, such as death metal, sometimes use speaker cabinets with 18" speakers or add a large subwoofer cabinet to their rig. Speakers for bass instrument amplification tend to be heavier-duty than those for regular electric guitar, and the speaker cabinets are typically more rigidly constructed and heavily braced, to prevent unwanted buzzes and rattles. Bass cabinets often include bass reflex ports, vents or openings in the cabinet, which improve the bass response and low-end, especially at high volumes. A small keyboard amplifier suitable for at-home practice capable of mixing the inputs from two keyboards. A keyboard amplifier, used for the stage piano, synthesizer, clonewheel organs and similar instruments, is distinct from other types of amplification systems due to the particular challenges associated with keyboards; namely, to provide solid low-frequency sound reproduction and crisp high-frequency sound reproduction. It is typically a combination amplifier that contains a two, three, or four-channel mixer, a pre-amplifier for each channel, equalization controls, a power amplifier, a speaker, and a horn, all in a single cabinet. Notable exceptions include keyboard amplifiers for specific keyboard types. The vintage Leslie speaker cabinet and modern recreations, which are generally used for Hammond organs, use a tube amplifier that is often turned up to add a warm, "growling" overdrive. Some electric pianos have built-in amplifiers and speakers, in addition to outputs for external amplification. These amplifiers are intended for acoustic instruments such as violin ("fiddle"), mandolin, and acoustic guitar—especially for the way musicians play these instruments in quieter genres such as folk and bluegrass. They are similar to keyboard amplifiers, in that they have a relatively flat frequency response and avoid tonal coloration. To produce this relatively "clean" sound, these amplifiers often have very powerful amplifiers (up to 800 watts RMS), to provide additional "headroom" and prevent unwanted distortion. Since an 800 watt amplifier built with standard Class AB technology would be heavy, some acoustic amplifier manufacturers use lightweight Class D, "switching amplifiers." Acoustic amplifier designs strive to produce a clean, transparent, "acoustic" sound that does not—except for reverb and other effects—alter the natural instrument sound, other than to make it louder. Amplifiers often come with a simple mixer to blend signals from a pickup and microphone. Since the early 2000s, it is increasingly common for acoustic amplifiers to provided digital effects, such as reverb and compression. Some also contain feedback-suppressing devices, such as notch filters or parametric equalizers. Instrument amplifiers have a different purpose than 'Hi-Fi' (high fidelity) stereo amplifiers in radios and home stereo systems. Hi-fi home stereo amplifiers strive to accurately reproduce signals from pre-recorded music, with as little harmonic distortion as possible. In contrast, instrument amplifiers are add additional tonal coloration to the original signal or emphasize certain frequencies. For electric instruments such as electric guitar, the amplifier helps to create the instrument's tone by boosting the input signal gain and distorting the signal, and by emphasizing frequencies deemed desirable (e.g., low frequencies) and de-emphasizing frequencies deemed undesirable (e.g., very high frequencies). In the 1960s and 1970s, large, heavy, high output power amplifiers were preferred for instrument amplifiers, especially for large concerts, because public address systems were generally only used to amplify the vocals. Moreover, in the 1960s, PA systems typically did not use monitor speaker systems to amplify the music for the onstage musicians. Instead, the musicians were expected to have instrument amplifiers that were powerful enough to provide amplification for the stage and audience. In late 1960s and early 1970s rock concerts, bands often used large stacks of speaker cabinets powered by heavy tube amplifiers such as the Super Valve Technology (SVT) amplifier, which was often used with eight 10" speakers. However, over subsequent decades, PA systems substantially improved, and used different approaches, such as horn-loaded "bass bins" (in the 1980s) and subwoofers (1990s and 2000s) to amplify bass frequencies. As well, in the 1980s and 1990s, monitor systems substantially improved, which helped sound engineers provide onstage musicians with a better reproduction of their instruments' sound. As a result of improvements to PA and monitor systems, musicians in the 2000s no longer need huge, powerful amplifier systems. A small combo amplifier patched into the PA suffices. In the 2000s, virtually all sound reaching the audience in large venues comes from the PA system. Onstage instrument amplifiers are more likely to be at a low volume, because high volume levels onstage make it harder for the sound engineer to control the sound mix. As a result, in many large venues much of the onstage sound reaching the musicians now comes from in-ear monitors, not from the instrument amplifiers. While stacks of huge speaker cabinets and amplifiers are still used in concerts (especially in heavy metal), this is often mainly for aesthetics or to create a more authentic tone. The switch to smaller instrument amplifiers makes it easier for musicians to transport their equipment to performances. As well, it makes concert stage management easier at large clubs and festivals where several bands are performing in sequence, because the bands can be moved on and off the stage more quickly. Instrument amplifiers may be based on thermionic ("tube" or "valve") or solid state (transistor) technology. Vacuum tubes were the dominant active electronic components in amplifiers from the 1930s through the early 1970s, and tube amplifiers remain preferred by many musicians and producers. Some musicians feel that tube amplifiers produce a "warmer" or more "natural" sound than solid state units, and a more pleasing overdrive sound when overdriven. However, these subjective assessments of the attributes of tube amplifiers' sound qualities are the subject of ongoing debate. Tube amps are more fragile, require more maintenance, and are usually more expensive than solid state amps. Tube amplifiers produce more heat than solid state amplifiers, but few manufacturers of these units include cooling fans in the chassis. While tube amplifiers do need to attain a proper operating temperature, if the temperature goes above this operating temperature, it may shorten the tubes' lifespan and lead to tonal inconsistencies. A Trace Elliot "Bonneville" tube amplifier as seen from the rear view: note the vacuum tubes extending into the wooden cabinet. By the 1960s and 1970s, semiconductor transistor-based amplifiers began to become more popular because they are less expensive, more resistant to bumps during transportation, lighter-weight, and require less maintenance. In some cases, tube and solid-state technologies are used together in amplifiers. A common setup is the use of a tube preamplifier with a solid-state power amplifier. There are also an increasing range of products that use digital signal processing and digital modeling technology to simulate many different combinations of amp and cabinets. The output transistors of solid-state amplifiers can be passively cooled by using metal fins called heatsinks to radiate away the heat. For high-wattage amplifiers (over 800 watts), a fan is often used to move air across internal heatsinks. The most common hybrid amp design is to use a tube preamp with a solid state power amplifier. This gives users the pleasing preamp and overdrive tone of a tube amp with the lowered cost, maintenance and weight of a solid state power amp.
Jump to navigation Jump to search An electric guitar is a guitar that uses one or more pickups to convert the vibration of its strings into electrical signals. The vibration occurs when a guitar player strums, plucks, fingerpicks, or taps the strings. The pickup used to sense the vibration generally uses electromagnetic induction to do so, though other technologies exist. In any case, the signal generated by an electric guitar is too weak to drive a loudspeaker, so it is fed to a guitar amplifier before being sent to the speaker(s), which converts it into audible sound. Since the output of an electric guitar is an electric signal, it can be electronically altered to change the timbre of the sound. Often, the signal is modified using effects such as reverb, and distortion and "overdrive"; the latter effect is considered to be a key element of electric blues guitar music and rock guitar playing. Invented in 1931, the amplified electric guitar was adopted by jazz guitar players, who wanted to play single-note guitar solos in large big band ensembles. Early proponents of the electric guitar on record include Les Paul, Lonnie Johnson, Sister Rosetta Tharpe, T-Bone Walker, and Charlie Christian. During the 1950s and 1960s, the electric guitar became the most important instrument in popular music. It has evolved into an instrument that is capable of a multitude of sounds and styles in genres ranging from pop and rock to country music, blues and jazz. It served as a major component in the development of electric blues, rock and roll, rock music, heavy metal music and many other genres of music. Electric guitar design and construction vary greatly in the shape of the body and the configuration of the neck, bridge, and pickups. Guitars may have a fixed bridge or a spring-loaded hinged bridge, which lets players "bend" the pitch of notes or chords up or down, or perform vibrato effects. The sound of an electric guitar can be modified by new playing techniques such as string bending, tapping, and hammering-on, using audio feedback, or slide guitar playing. There are several types of electric guitar, including: the solid-body guitar; various types of hollow-body guitars; the six-string guitar (the most common type), which is usually tuned E, A, D, G, B, E, from lowest to highest strings; the seven-string guitar, which typically adds a low B string below the low E; and the twelve-string guitar, which has six pairs of strings. In pop and rock music, the electric guitar is often used in two roles: as a rhythm guitar, which plays the chord sequences or progressions, and riffs, and sets the beat (as part of a rhythm section); and as a lead guitar, which provides instrumental melody lines, melodic instrumental fill passages, and solos. In a small group, such as a power trio, one guitarist switches between both roles. In larger rock and metal bands, there is often a rhythm guitarist and a lead guitarist. Many experiments at electrically amplifying the vibrations of a string instrument were made dating back to the early part of the 20th century. Patents from the 1910s show telephone transmitters were adapted and placed inside violins and banjos to amplify the sound. Hobbyists in the 1920s used carbon button microphones attached to the bridge; however, these detected vibration from the bridge on top of the instrument, resulting in a weak signal. With numerous people experimenting with electrical instruments in the 1920s and early 1930s, there are many claimants to have been the first to invent an electric guitar. The "Frying Pan", 1932 Electric guitars were originally designed by acoustic guitar makers and instrument manufacturers. Some of the earliest electric guitars adapted hollow-bodied acoustic instruments and used tungsten pickups. The first electrically amplified guitar was designed in 1931 by George Beauchamp, the general manager of the National Guitar Corporation, with Paul Barth, who was vice president. The maple body prototype for the one-piece cast aluminium "frying pan" was built by Harry Watson, factory superintendent of the National Guitar Corporation. Commercial production began in late summer of 1932 by the Ro-Pat-In Corporation (Electro-Patent-Instrument Company), in Los Angeles, a partnership of Beauchamp, Adolph Rickenbacker (originally Rickenbacher), and Paul Barth. In 1934, the company was renamed the Rickenbacker Electro Stringed Instrument Company. In that year Beauchamp applied for a United States patent for an Electrical Stringed Musical Instrument and the patent was later issued in 1937. Electro-Spanish Ken Roberts, 1935 By early-mid 1935, Electro String Instrument Corporation had achieved mainstream success with the A-22 "Frying Pan" steel guitar, and set out to capture a new audience through its release of the Electro-Spanish Model B and the Electro-Spanish Ken Roberts which was the first full 25" scale electric guitar ever produced.  The Electro-Spanish Ken Roberts was revolutionary for its time, providing players a full 25" scale, with 17 frets free of the fretboard.  Unlike other lap-steel electrified instruments produced during the time, the Electro-Spanish Ken Roberts was designed to play standing vertical, upright with a strap.  The Electro-Spanish Ken Roberts was additionally, the first instrument to feature a hand operated vibrato, as a standard appointment found on every model.  The vibrato device was called the "Vibrola" and was invented by Doc Kauffman.   It is estimated that fewer than 50 Electro-Spanish Ken Roberts were constructed between 1933 and 1937; fewer than 10 are known to survive today. The demand for amplified guitars began during the big band era; as orchestras increased in size, guitar players soon realized the necessity in guitar amplification & electrification.  The first electric guitars used in jazz were hollow archtop acoustic guitar bodies with electromagnetic transducers. Early electric guitar manufacturers include Rickenbacker in 1932; Dobro in 1933; National, AudioVox and Volu-tone in 1934; Vega, Epiphone (Electrophone and Electar), and Gibson in 1935 and many others by 1936. Fender Stratocaster has one of the most often emulated electric guitar shapes The solid-body electric guitar is made of solid wood, without functionally resonating air spaces. The first solid-body Spanish standard guitar was offered by Vivi-Tone no later than 1934. This model featured a guitar-shaped body of a single sheet of plywood affixed to a wood frame. Another early, substantially solid Spanish electric guitar, called the Electro Spanish, was marketed by the Rickenbacker guitar company in 1935 and made of Bakelite. By 1936, the Slingerland company introduced a wooden solid-body electric model, the Slingerland Songster 401 (and a lap steel counterpart, the Songster 400). Gibson's first production electric guitar, marketed in 1936, was the ES-150 model ("ES" for "Electric Spanish", and "150" reflecting the $150 price of the instrument, along with matching amplifier). The ES-150 guitar featured a single-coil, hexagonally shaped "bar" pickup, which was designed by Walt Fuller. It became known as the "Charlie Christian" pickup (named for the great jazz guitarist who was among the first to perform with the ES-150 guitar). The ES-150 achieved some popularity but suffered from unequal loudness across the six strings. Early proponents of the electric guitar on record include Alvino Rey (Phil Spitalney Orchestra), Les Paul (Fred Waring Orchestra), Danny Stewart (Andy Iona Orchestra), George Barnes (under many aliases), Eddie Durham, Lonnie Johnson, Floyd Smith, Big Bill Broonzy, T-Bone Walker, George Van Eps, Charlie Christian (Benny Goodman Orchestra), Tampa Red, Memphis Minnie, and Arthur Crudup. According to jazz historian James Lincoln Collier, Floyd Smith can be credited as the first person to rig up an amplified guitar. According to Collier, "Floyd's Guitar Blues" may be the first important use of the electric guitar on record.  A functionally solid-body electric guitar was designed and built in 1940 by Les Paul from an Epiphone acoustic archtop. His "log guitar" (so called because it consisted of a simple 4x4 wood post with a neck attached to it and homemade pickups and hardware, with two detachable Epiphone hollow-body halves attached to the sides for appearance only) shares nothing in design or hardware with the solid-body Gibson Les Paul introduced in 1952. However, the feedback associated with hollow-bodied electric guitars was understood long before Paul's "log" was created in 1940; Gage Brewer's Ro-Pat-In of 1932 had a top so heavily reinforced that it essentially functioned as a solid-body instrument. In 1945, Richard D. Bourgerie made an electric guitar pickup and amplifier for professional guitar player George Barnes. Bourgerie worked through World War II at Howard Radio Company, making electronic equipment for the American military. Barnes showed the result to Les Paul, who then arranged for Bourgerie to have one made for him. 1. Headstock 1.1 machine heads 1.2 truss rod cover 1.3 string guide 1.4 nut 2. Neck 2.1 fretboard 2.2 inlay fret markers 2.3 frets 2.4 neck joint 3. Body 3.1 "neck" pickup 3.2 "bridge" pickup 3.3 saddles 3.4 bridge 3.5 fine tuners and tailpiece assembly 3.6 whammy bar (vibrato arm) 3.7 pickup selector switch 3.8 volume and tone control knobs 3.9 output connector (output jack)(TS) 3.10 strap buttons 4. Strings 4.1 bass strings 4.2 treble strings Electric guitar design and construction vary greatly in the shape of the body and the configuration of the neck, bridge, and pickups. However, some features are present on most guitars. The photo below shows the different parts of an electric guitar. The headstock (1) contains the metal machine heads (1.1), which use a worm gear for tuning. The nut (1.4)—a thin fret-like strip of metal, plastic, graphite or bone—supports the strings at the headstock end of the instrument. The frets (2.3) are thin metal strips that stop the string at the correct pitch when the player pushes a string against the fingerboard. The truss rod (1.2) is a metal rod (usually adjustable) that counters the tension of the strings to keep the neck straight. Position markers (2.2) provide the player with a reference to the playing position on the fingerboard. The neck and fretboard (2.1) extend from the body. At the neck joint (2.4), the neck is either glued or bolted to the body. The body (3) is typically made of wood with a hard, polymerized finish. Strings vibrating in the magnetic field of the pickups (3.1, 3.2) produce an electric current in the pickup winding that passes through the tone and volume controls (3.8) to the output jack. Some guitars have piezo pickups, in addition to or instead of magnetic pickups. Some guitars have a fixed bridge (3.4). Others have a spring-loaded hinged bridge called a vibrato bar, tremolo bar, or whammy bar, which lets players bend notes or chords up or down in pitch or perform a vibrato embellishment. A plastic pickguard on some guitars protects the body from scratches or covers the control cavity, which holds most of the wiring. The degree to which the choice of woods and other materials in the solid-guitar body (3) affects the sonic character of the amplified signal is disputed. Many believe it is highly significant, while others think the difference between woods is subtle. In acoustic and archtop guitars, wood choices more clearly affect tone. Woods typically used in solid-body electric guitars include alder (brighter, but well rounded), swamp ash (similar to alder, but with more pronounced highs and lows), mahogany (dark, bassy, warm), poplar (similar to alder), and basswood (very neutral). Maple, a very bright tonewood, is also a popular body wood, but is very heavy. For this reason it is often placed as a "cap" on a guitar made primarily of another wood. Cheaper guitars are often made of cheaper woods, such as plywood, pine or agathis—not true hardwoods—which can affect durability and tone. Though most guitars are made of wood, any material may be used. Materials such as plastic, metal, and even cardboard have been used in some instruments. The guitar output jack typically provides a monaural signal. Many guitars with active electronics use a jack with an extra contact normally used for stereo. These guitars use the extra contact to break the ground connection to the on-board battery to preserve battery life when the guitar is unplugged. These guitars require a mono plug to close the internal switch and connect the battery to ground. Standard guitar cables use a high-impedance 1⁄4 inch (6.35 mm) mono plug. These have a tip and sleeve configuration referred to as a TS phone connector. The voltage is usually around 1 to 9 millivolts. A few guitars feature stereo output, such as Rickenbacker guitars equipped with Rick-O-Sound. There are a variety of ways the "stereo" effect may be implemented. Commonly, but not exclusively, stereo guitars route the neck and bridge pickups to separate output buses on the guitar. A stereo cable then routes each pickup to its own signal chain or amplifier. For these applications, the most popular connector is a high-impedance 1⁄4 inch (6.35 mm) plug with a tip, ring and sleeve configuration, also known as a TRS phone connector. Some studio instruments, notably certain Gibson Les Paul models, incorporate a low-impedance three-pin XLR connector for balanced audio. Many exotic arrangements and connectors exist that support features such as midi and hexaphonic pickups. The bridge and tailpiece, while serving separate purposes, work closely together to affect playing style and tone. There are four basic types of bridge and tailpiece systems on electric guitars. Within these four types are many variants. A hard-tail guitar bridge anchors the strings at or directly behind the bridge and is fastened securely to the top of the instrument. These are common on carved-top guitars, such as the Gibson Les Paul and the Paul Reed Smith models, and on slab-body guitars, such as the Music Man Albert Lee and Fender guitars that are not equipped with a vibrato arm. A floating or trapeze tailpiece (similar to a violin's) fastens to the body at the base of the guitar. These appear on Rickenbackers, Gretsches, Epiphones, a wide variety of archtop guitars, particularly Jazz guitars, and the 1952 Gibson Les Paul. Pictured is a tremolo arm or vibrato tailpiece style bridge and tailpiece system, often called a whammy bar or trem. It uses a lever ("vibrato arm") attached to the bridge that can temporarily slacken or tighten the strings to alter the pitch. A player can use this to create a vibrato or a portamento effect. Early vibrato systems were often unreliable and made the guitar go out of tune easily. They also had a limited pitch range. Later Fender designs were better, but Fender held the patent on these, so other companies used older designs for many years. Detail of a Squier-made Fender Stratocaster. Note the vibrato arm, the 3 single-coil pickups, the volume and tone knobs. With expiration of the Fender patent on the Stratocaster-style vibrato, various improvements on this type of internal, multi-spring vibrato system are now available. Floyd Rose introduced one of the first improvements on the vibrato system in many years when, in the late 1970s, he experimented with "locking" nuts and bridges that prevent the guitar from losing tuning, even under heavy vibrato bar use. Tune-o-matic with "strings through the body" construction (without stopbar) The fourth type of system employs string-through body anchoring. The strings pass over the bridge saddles, then through holes through the top of the guitar body to the back. The strings are typically anchored in place at the back of the guitar by metal ferrules. Many believe this design improves a guitar's sustain and timbre. A few examples of string-through body guitars are the Fender Telecaster Thinline, the Fender Telecaster Deluxe, the B.C. Rich IT Warlock and Mockingbird, and the Schecter Omen 6 and 7 series. Main article: Pickup (music technology) Compared to an acoustic guitar, which has a hollow body, electric guitars make much less audible sound when their strings are plucked, so electric guitars are normally plugged into a guitar amplifier and speaker. When an electric guitar is played, string movement produces a signal by generating (i.e., inducing) a small electric current in the magnetic pickups, which are magnets wound with coils of very fine wire. The signal passes through the tone and volume circuits to the output jack, and through a cable to an amplifier. The current induced is proportional to such factors as string density and the amount of movement over the pickups. Pickups on a Fender Squier "Fat Strat" guitar—a "humbucker" pickup on the left and two single-coil pickups on the right. Because in most cases it is desirable to isolate coil-wound pickups from the unintended sound of internal vibration of loose coil windings, a guitar's magnetic pickups are normally embedded or "potted" in wax, lacquer, or epoxy to prevent the pickup from producing a microphonic effect. Because of their natural inductive qualities, all magnetic pickups tend to pick up ambient, usually unwanted electromagnetic interference or EMI. The resulting hum is particularly strong with single-coil pickups, and it is aggravated by the fact that many vintage guitars are insufficiently shielded against electromagnetic interference. The most common source is 50- or 60-Hz hum from power transmission systems (house wiring, etc.). Since nearly all amplifiers and audio equipment associated with electric guitars must be plugged in, it is a continuing technical challenge to reduce or eliminate unwanted hum. Double-coil or "humbucker" pickups were invented as a way to reduce or counter the unwanted ambient hum sounds (known as 60-cycle hum). Humbuckers have two coils of opposite magnetic and electric polarity to produce a differential signal. Electromagnetic noise that hits both coils equally tries to drive the pickup signal toward positive on one coil and toward negative on the other, which cancels out the noise. The two coils are wired in phase, so their signal adds together. This high combined inductance of the two coils leads to the richer, "fatter" tone associated with humbucking pickups. Piezoelectric pickups use a "sandwich" of quartz crystal or other piezoelectric material, typically placed beneath the string saddles or nut. These devices respond to pressure changes from all vibration at these specific points. Optical pickups are a type of pickup that sense string and body vibrations using infrared LED light. These pickups are not sensitive to EMI. Some "hybrid" electric guitars are equipped with additional microphone, piezoelectric, optical, or other types of transducers to approximate an acoustic instrument tone and broaden the sonic palette of the instrument. Electric guitar necks vary in composition and shape. The primary metric of guitar necks is the scale length, which is the vibrating length of the strings from nut to bridge. A typical Fender guitar uses a 25.5-inch (65 cm) scale length, while Gibson uses a 24.75-inch (62.9 cm) scale length in their Les Paul. While the scale length of the Les Paul is often described as 24.75 inches, it has varied through the years by as much as a half inch. Frets are positioned proportionally to scale length—the shorter the scale length, the closer the fret spacing. Opinions vary regarding the effect of scale length on tone and feel. Popular opinion holds that longer scale length contributes to greater amplitude. Reports of playing feel are greatly complicated by the many factors involved in this perception. String gauge and design, neck construction and relief, guitar setup, playing style and other factors contribute to the subjective impression of playability or feel. A bolt-on neck Necks are described as bolt-on, set-in, or neck-through, depending on how they attach to the body. Set-in necks are glued to the body in the factory. They are said to have a warmer tone and greater sustain. This is the traditional type of joint. Leo Fender pioneered bolt-on necks on electric guitars to facilitate easy adjustment and replacement. Neck-through instruments extend the neck the length of the instrument, so that it forms the center of the body, and are known for long sustain and for being particularly sturdy. While a set-in neck can be carefully unglued by a skilled luthier, and a bolt-on neck can simply be unscrewed, a neck-through design is difficult or even impossible to repair, depending on the damage. Historically, the bolt-on style has been more popular for ease of installation and adjustment. Since bolt-on necks can be easily removed, there is an after-market in replacement bolt-on necks from companies such as Warmoth and Mighty Mite. Some instruments—notably most Gibson models—continue to use set-in glued necks. Neck-through bodies are somewhat more common in bass guitars. Materials for necks are selected for dimensional stability and rigidity, and some allege that they influence tone. Hardwoods are preferred, with maple, mahogany, and ash topping the list. The neck and fingerboard can be made from different materials; for example, a guitar may have a maple neck with a rosewood or ebony fingerboard. In the 1970s, designers began to use exotic man-made materials such as aircraft-grade aluminum, carbon fiber, and ebonol. Makers known for these unusual materials include John Veleno, Travis Bean, Geoff Gould, and Alembic. Aside from possible engineering advantages, some feel that in relation to the rising cost of rare tonewoods, man-made materials may be economically preferable and more ecologically sensitive. However, wood remains popular in production instruments, though sometimes in conjunction with new materials. Vigier guitars, for example, use a wooden neck reinforced by embedding a light, carbon fiber rod in place of the usual heavier steel bar or adjustable steel truss rod. After-market necks made entirely from carbon fiber fit existing bolt-on instruments. Few, if any, extensive formal investigations have been widely published that confirm or refute claims over the effects of different woods or materials on electric guitar sound. A neck-through bass guitar Several neck shapes appear on guitars, including shapes known as C necks, U necks, and V necks. These refer to the cross-sectional shape of the neck (especially near the nut). Several sizes of fret wire are available, with traditional players often preferring thin frets, and metal shredders liking thick frets. Thin frets are considered better for playing chords, while thick frets allow lead guitarists to bend notes with less effort. An electric guitar with a folding neck called the "Foldaxe" was designed and built for Chet Atkins by Roger C. Field. Steinberger guitars developed a line of exotic, carbon fiber instruments without headstocks, with tuning done on the bridge instead. Fingerboards vary as much as necks. The fingerboard surface usually has a cross-sectional radius that is optimized to accommodate finger movement for different playing techniques. Fingerboard radius typically ranges from nearly flat (a very large radius) to radically arched (a small radius). The vintage Fender Telecaster, for example, has a typical small radius of approximately 7.25 inches (18.4 cm). Some manufacturers have experimented with fret profile and material, fret layout, number of frets, and modifications of the fingerboard surface for various reasons. Some innovations were intended to improve playability by ergonomic means, such as Warmoth Guitars' compound radius fingerboard. Scalloped fingerboards added enhanced microtonality during fast legato runs. Fanned frets intend to provide each string with an optimal playing tension and enhanced musicality. Some guitars have no frets—and others, like the Gittler guitar, have no neck in the traditional sense. While an acoustic guitar's sound depends largely on the vibration of the guitar's body and the air inside it, the sound of an electric guitar depends largely on the signal from the pickups. The signal can be "shaped" on its path to the amplifier via a range of effect devices or circuits that modify the tone and characteristics of the signal. Amplifiers and speakers also add coloration to the final sound. Main article: Pickup (music technology) Modern electric guitars most commonly have two or three magnetic pickups. Identical pickups produce different tones depending on location between the neck and bridge. Bridge pickups produce a bright or trebly timbre, and neck pickups are warmer[when defined as?] or more bassy. The type of pickup also affects tone. Dual-coil pickups sound warm, thick, perhaps even muddy; single-coil pickups sound clear, bright, perhaps even biting. Guitars don't require a uniform pickup type: a common mixture is the "fat Strat" arrangement of one dual-coil at the bridge position and single coils in the middle and neck positions, known as HSS (humbucker/single/single). Some guitars have a piezoelectric pickup in addition to electromagnetic pickups. Piezo pickups produce a more acoustic sound. The piezo runs through a built-in equalizer (EQ) to improve similitude and control tone. A blend knob controls the mix between electromagnetic and piezoelectric sounds. Where there is more than one pickup, a switch selects between the outputs of individual pickups or some combination; two-pickup guitars have three-way switches, and three-pickup guitars have five-way switches. Further circuitry sometimes combines pickups in different ways. For instance, phase switching places one pickup out of phase with the other(s), leading to a "honky", "nasal", or "funky" sound. Individual pickups can also have their timbre altered by switches, typically coil tap switches that effectively short-circuit some of a dual-coil pickup's windings[vague] to produce a tone similar to a single-coil pickup (usually done with push-pull volume knobs). The final stages of on-board sound-shaping circuitry are the volume control (potentiometer) and tone control (a low-pass filter which "rolls off" the treble frequencies). Where there are individual volume controls for different pickups, and where pickup signals can be combined, they would affect the timbre of the final sound by adjusting the balance between pickups from a straight 50:50. The strings fitted to the guitar also have an influence on tone. Rock musicians often[when?] prefer the lightest gauge of roundwound string, which is easier to bend, while jazz musicians go for heavier, flatwound strings, which have a rich, dark sound. Steel, nickel, and cobalt are common string materials, and each gives a slightly different tone color. A Fender Bassman amp head with a 15" speaker cabinet. Main article: Guitar amplifier The solid-body electric guitar does not produce enough sound for an audience to hear it in a performance setting unless it's electronically amplified—plugged into an amplifier, mixing console, or PA. Guitar amplifier design uses a different approach than sound reinforcement system power amplifiers and home "hi-fi" stereo systems. Audio amplifiers generally are intended to accurately reproduce the source signal without adding unwanted tonal coloration (i.e., they have a flat frequency response) or unwanted distortion. In contrast, most guitar amplifiers provide tonal coloration and overdrive or distortion of various types. A common tonal coloration sought by guitarists is rolling off some of the high frequencies. Guitarists in some musical genres (e.g., blues, rock) intentionally choose amplifiers or effects units that distort or otherwise alter the sound to some degree. This was not actually a new development in the musical instrument or its supporting gear, but rather a shift of aesthetics, such sounds not having been thought desirable previously. Guitar amplifiers generally incorporate at least a few effects, the most basic being tone controls for bass and treble. There may be some form of "overdrive" control, where the preamplifier's output is increased to the point where the amplitude overloads the input of the power amplifier stage, causing clipping. In the 1970s, as effects pedals proliferated, their sounds were combined with tube amp distortion at lower, more controlled volumes by using power attenuators, such as Tom Scholz's Power Soak, as well as re-amplified dummy loads, such as Eddie Van Halen's use of dummy-load power resistor, post-power-tube effects, and a final solid-state amp driving the guitar speakers. Among the first actual on-board effects were a tremolo system (sometimes incorrectly labeled and marketed as vibrato), or a mechanical spring reverb unit. In the 2010s, guitar amps often contain multiple effects, such as distortion, chorus, flanger, phaser, or octave shift. Recent amplifiers may include digital technology similar to effects pedals, up to the ability to model or emulate a variety of classic amplifiers. Some modeling systems also emulate the tonal characteristics of different speaker configurations, cabinets, and microphones. Nearly all amp and speaker cabinet modeling is done digitally, using computer techniques (e.g., Digital Signal Processing or DSP circuitry and software). Main article: Effects unit A Boss distortion pedal in use In the 1960s, the tonal palette of the electric guitar was further modified by introducing effect units in its signal path, before the guitar amp, of which one of the earliest units was the fuzz pedal. Effects units come in several formats, the most common of which are the stompbox "pedal" and the rackmount unit. A stomp box (or pedal) is a small metal or plastic box containing the circuitry, which is placed on the floor in front of the musician and connected in line with the patch cord connected to the instrument. The box is typically controlled by one or more foot-pedal on-off switches and it typically contains only one or two effects. Pedals are smaller than rackmount effects and usually less expensive. "Guitar pedalboards" are used by musicians who use multiple stomp-boxes; these may be a DIY project made with plywood or a commercial stock or custom-made pedalboard. A rackmount effects unit may contain an electronic circuit nearly identical to a stompbox-based effect, but it is mounted in a standard 19" equipment rack, which is usually mounted in a road case that is designed to protect the equipment during transport. More recently, as signal-processing technology continuously becomes more feature-dense, rack-mount effects units frequently contain several types of effects. They are typically controlled by knobs or switches on the front panel, and often by a MIDI digital control interface. Typical effects include: The Zoom 505 multi-effect pedal A multi-effects device (also called a "multi-FX" device) is a single electronics effects pedal or rack-mount device that contains many electronic effects. In the late 1990s and throughout the 2000s, multi-FX manufacturers such as Zoom and Korg produced devices that were increasingly feature-laden. Multi-FX devices combine several effects together, and most devices allow users to use preset combinations of effects, including distortion, chorus, reverb, compression, and so on. This allows musicians to have quick on-stage access to different effects combinations. Some multi-FX pedals contain modelled versions of well-known effects pedals or amplifiers. The Boss GT-8, a higher-end multi-effect processing pedal; note the preset switches and patch bank foot switches and built-in expression pedal. Multi-effects devices have garnered a large share of the effects device market, because they offer the user such a large variety of effects in a single package. A low-priced multi-effects pedal may provide 20 or more effects for the price of a regular single-effect pedal. More expensive multi-effect pedals may include 40 or more effects, amplifier modelling, and the ability to combine effects or modelled amp sounds in different combinations, as if the user was using multiple guitar amps. More expensive multi-effects pedals may also include more input and output jacks (e.g., an auxiliary input or a "dry" output), MIDI inputs and outputs, and an expression pedal, which can control volume or modify effect parameters (e.g., the rate of the simulated rotary speaker effect). By the 1980s and 1990s, software effects became capable of replicating the analog effects used in the past. These new digital effects attempt to model the sound produced by analog effects and tube amps, with varying degrees of quality. There are many free guitar effects computer programs that can be downloaded from the Internet. Now, computers with sound cards can be used as digital guitar effects processors. Although digital and software effects offer many advantages, many guitarists still use analog effects. Main article: Guitar synthesizer A prepared guitar The sound of a guitar can not only be adapted by electronic sound effects but is also heavily affected by various new techniques developed or becoming possible in combination with electric amplification. This is called extended technique. Extended techniques include: The hammer-on technique Palm muting of the strings using the picking hand Slide guitar Other techniques, such as axial finger vibrato, pull-offs, hammer-ons, palm muting, harmonics and altered tunings, are also used on the classical and acoustic guitar. Shred guitar is a genre involving a number of extended techniques. Paul Reed Smith Standard 22 Gittler electric guitar, a bodyless guitar without fingerboard or neck Fender Esquire Unlike acoustic guitars, solid-body electric guitars have no vibrating soundboard to amplify string vibration. Instead, solid-body instruments depend on electric pickups and an amplifier (or amp) and speaker. The solid body ensures that the amplified sound reproduces the string vibration alone, thus avoiding the wolf tones and unwanted feedback associated with amplified acoustic guitars. These guitars are generally made of hardwood covered with a hard polymer finish, often polyester or lacquer. In large production facilities, the wood is stored for three to six months in a wood-drying kiln before being cut to shape. Premium custom-built guitars are frequently made with much older, hand-selected wood. One of the first solid-body guitars was invented by Les Paul. Gibson did not present their Gibson Les Paul guitar prototypes to the public, as they did not believe the solid-body style would catch on. Another early solid-body Spanish style guitar, resembling what would become Gibson's Les Paul guitar a decade later, was developed in 1941 by O.W. Appleton, of Nogales, Arizona. Appleton made contact with both Gibson and Fender but was unable to sell the idea behind his "App" guitar to either company. In 1946, Merle Travis commissioned steel guitar builder Paul Bigsby to build him a solid-body Spanish-style electric. Bigsby delivered the guitar in 1948. The first mass-produced solid-body guitar was Fender Esquire and Fender Broadcaster (later to become the Fender Telecaster), first made in 1948, five years after Les Paul made his prototype. The Gibson Les Paul appeared soon after to compete with the Broadcaster. Another notable solid-body design is the Fender Stratocaster, which was introduced in 1954 and became extremely popular among musicians in the 1960s and 1970s for its wide tonal capabilities and more comfortable ergonomics than other models. The history of Electric Guitars is summarized by Guitar World magazine, and the earliest electric guitar on their top 10 list is the Ro-Pat-In Electro A-25 “Frying Pan” (1932) described as 'The first-fully functioning solid-body electric guitar to be manufactured and sold'. The most recent electric guitar on this list is the Ibanez Jem (1987) which featured '24 frets', 'an impossibly thin neck' and was 'designed to be the ultimate shredder machine'. Numerous other important electric guitars are on the list including Gibson ES-150 (1936), Fender Telecaster (1951), Gibson Les Paul (1952), Gretsch 6128 Duo Jet (1953), Fender Stratocaster (1954), Rickenbacker 360/12 (1964), Van Halen Frankenstein (1975), Paul Reed Smith Custom (1985) many of these guitars were 'successors' to earlier designs . Electric Guitar designs eventually became culturally important and visually iconic, with various model companies selling miniature model versions   of particularly famous electric guitars, for example the Gibson SG used by Angus Young from the group AC/DC. Some solid-bodied guitars, such as the Gibson Les Paul Supreme, the PRS Singlecut, and the Fender Telecaster Thinline, among others, are built with hollows in the body. These hollows are designed specifically not to interfere with the critical bridge and string anchor point on the solid body. In the case of Gibson and PRS, these are called chambered bodies. The motivation for this may be to reduce weight, to achieve a semi-acoustic tone (see below) or both. Main article: Semi-acoustic guitar Epiphone semi-acoustic hollow-body guitar Semi-acoustic guitars have a hollow body (similar in depth to a solid-body guitar) and electronic pickups mounted on the body. They work in a similar way to solid-body electric guitars except that, because the hollow body also vibrates, the pickups convert a combination of string and body vibration into an electrical signal. Whereas chambered guitars are made, like solid-body guitars, from a single block of wood, semi-acoustic and full-hollowbody guitars bodies are made from thin sheets of wood. They do not provide enough acoustic volume for live performance, but they can be used unplugged for quiet practice. Semi-acoustics are noted for being able to provide a sweet, plaintive, or funky tone. They are used in many genres, including blues, funk, sixties pop, and indie rock. They generally have cello-style F-shaped sound holes. These can be blocked off to prevent feedback, as in B. B. King's famous Lucille. Feedback can also be reduced by making them with a solid block in the middle of the soundbox. Main article: Archtop guitar Full hollow-body guitars have large, deep bodies made of glued-together sheets, or "plates", of wood. They can often be played at the same volume as an acoustic guitar and therefore can be used unplugged at intimate gigs. They qualify as electric guitars inasmuch as they have fitted pickups. Historically, archtop guitars with retrofitted pickups were among the very earliest electric guitars. The instrument originated during the Jazz Age, in the 1920s and 1930s, and are still considered the classic jazz guitar (nicknamed "jazzbox"). Like semi-acoustic guitars, they often have f-shaped sound holes. Having humbucker pickups (sometimes just a neck pickup) and usually strung heavlly, jazzboxes are noted for their warm, rich tone. A variation with single-coil pickups, and sometimes with a Bigsby tremolo, has long been popular in country and rockabilly; it has a distinctly more twangy, biting tone than the classic jazzbox. The term archtop refers to a method of construction subtly different from the typical acoustic (or "folk" or "western" or "steel-string" guitar): the top is formed from a moderately thick (1 inch (2.5 cm)) piece of wood, which is then carved into a thin (0.1 inches (0.25 cm)) domed shape, whereas conventional acoustic guitars have a thin, flat top. Main article: Acoustic-electric guitar Some steel-string acoustic guitars are fitted with pickups purely as an alternative to using a separate microphone. They may also be fitted with a piezoelectric pickup under the bridge, attached to the bridge mounting plate, or with a low-mass microphone (usually a condenser mic) inside the body of the guitar that converts the vibrations in the body into electronic signals. Combinations of these types of pickups may be used, with an integral mixer/preamp/graphic equalizer. Such instruments are called electric acoustic guitars. They are regarded as acoustic guitars rather than electric guitars, because the pickups do not produce a signal directly from the vibration of the strings, but rather from the vibration of the guitar top or body. Electric acoustic guitars should not be confused with semi-acoustic guitars, which have pickups of the type found on solid-body electric guitars, or solid-body hybrid guitars with piezoelectric pickups. The one-string guitar is also known as the Unitar. Although rare, the one-string guitar is sometimes heard, particularly in Delta blues, where improvised folk instruments were popular in the 1930s and 1940s. Eddie "One String" Jones had some regional success. Mississippi blues musician Lonnie Pitchford played a similar, homemade instrument. In a more contemporary style, Little Willie Joe, the inventor of the Unitar, had a rhythm and blues instrumental hit in the 1950s with "Twitchy", recorded with the Rene Hall Orchestra. The four-string guitar is better known as the tenor guitar. One of its best-known players was Tiny Grimes, who played on 52nd Street with the beboppers and played a major role in the Prestige Blues Swingers. Multi-instrumentalist Warren Ellis (musician) of Dirty Three and Nick Cave and the Bad Seeds is a contemporary player who includes a tenor guitar in his repertoire. The four-string guitar is normally tuned CGDA, but some players, such as Tiny Grimes, tune to DGBE to preserve familiar 6-string guitar chord fingerings. The tenor guitar can also be tuned like a soprano, concert, or tenor ukulele, using versions of GCEA tuning. Main article: Seven-string guitar Stephen Carpenter playing a 7-string electric guitar in 2009 Most seven-string guitars add a low B string below the low E. Both electric and classical guitars exist designed for this tuning. A high A string above the high E instead of the low B string is sometimes used. Another less common seven-string arrangement is a second G string situated beside the standard G string and tuned an octave higher, in the same manner as a twelve-stringed guitar (see below). Jazz guitarists using a seven-string include George Van Eps, Lenny Breau, Bucky Pizzarelli and his son John Pizzarelli. Seven-string electric guitars were popularized among rock players in the 1980s by Steve Vai. Along with the Japanese guitar company Ibanez, Vai created the Universe series seven-string guitars in the 1980s, with a double locking tremolo system for a seven-string guitar. These models were based on Vai's six-string signature series, the Ibanez Jem. Seven-string guitars experienced a resurgence in popularity in the 2000s, championed by Deftones, Limp Bizkit, Slayer, KoRn, Fear Factory, Strapping Young Lad, Nevermore, Muse and other hard rock and metal bands. Metal musicians often prefer the seven-string guitar for its extended lower range. The seven-string guitar has also played an essential role in progressive metal rock and is commonly used in bands such as Dream Theater and Pain of Salvation and by experimental guitarists such as Ben Levin. Main article: Eight-string guitar Eight-string electric guitars are rare but not unused. One is played by Charlie Hunter, which was manufactured by Novax Guitars. The largest manufacturer of eight- to 14-string instruments is Warr Guitars. Their models are used by Trey Gunn (ex King Crimson), who has his own signature line from the company. Similarly, Mårten Hagström and Fredrik Thordendal of Meshuggah used 8-string guitars made by Nevborn Guitars and now guitars by Ibanez. Munky of the nu metal band KoRn is also known to use seven-string Ibanez guitars, and it is rumored that he is planning to release a K8 eight-string guitar similar to his K7 seven-string guitar. Another Ibanez player is Tosin Abasi, lead guitarist of the progressive metal band Animals as Leaders, who uses an Ibanez RG2228 to mix bright chords with very heavy low riffs on the seventh and eighth strings. Stephen Carpenter of Deftones also switched from a seven-string to an eight-string in 2008 and released his signature STEF B-8 with ESP Guitars. In 2008, Ibanez released the Ibanez RG2228-GK, which is the first mass-produced eight-string guitar. Jethro Tull's first album uses a nine-string guitar. Bill Kelliher, guitarist for the heavy metal group Mastodon, worked with First Act on a custom mass-produced nine-string guitar. Main article: Ten-string guitar B.C. Rich manufactured a ten-string six-course electric guitar, the Bich, whose radical shape positioned the machine heads for the four secondary strings onto the body, avoiding the head-heaviness of many electric twelve-string guitars. However, many players bought it for the body shape or electrics and simply removed the extra strings. The company recognized this and released six-string models of the Bich, a shape now generally incorporated into their standard Warlock. Main article: Twelve-string guitar Twelve-string electric guitars feature six pairs of strings, usually with each pair tuned to the same note. The extra E, A, D, and G strings add a note one octave above, and the extra B and E strings are in unison. The pairs of strings are played together as one, so the technique and tuning are the same as a conventional guitar, but they create a much fuller tone, with the additional strings adding a natural chorus effect. They are used almost solely to play harmony and rhythm parts, rather than for guitar solos. They are relatively common in folk rock music. Lead Belly is the folk artist most identified with the twelve-string guitar, usually acoustic with a pickup. George Harrison of the Beatles and Roger McGuinn of the Byrds brought the electric twelve-string to notability in rock and roll. During the Beatles' first trip to the United States, in February 1964, Harrison received a new 360/12 model guitar from the Rickenbacker company, a twelve-string electric made to look onstage like a six-string. He began using the 360 in the studio on Lennon's "You Can't Do That" and other songs. McGuinn began using electric twelve-string guitars to create the jangly, ringing sound of the Byrds. Both Jimmy Page, the guitarist with Led Zeppelin, and Leo Kottke, a solo artist, are well known as twelve-string guitar players. Main article: 3rd bridge The third-bridge guitar is an electric prepared guitar with an additional, third bridge. This can be a normal guitar with, for instance, a screwdriver placed under the strings, or it can be a custom-made instrument. Lee Ranaldo of Sonic Youth plays with a third bridge. Main article: Double neck guitar A Gibson EDS-1275 Double-neck (or, less commonly, "twin-neck") guitars enable guitarists to play both guitar and bass guitar or, more commonly, both a six-string and a twelve-string. In the mid-1960s, one of the first players to use this type of guitar was Paul Revere & the Raiders' guitarist Drake Levin. Another early user was John McLaughlin. The double-neck guitar was popularized by Jimmy Page, who used a custom-made, cherry-finished Gibson EDS-1275 to perform "Stairway to Heaven", "The Song Remains the Same" and "The Rain Song", although for the recording of "Stairway to Heaven" he used a Fender Telecaster and a Fender XII electric twelve-string. Mike Rutherford of Genesis and Mike + the Mechanics is also famous for his use of a double-neck guitar during live shows. Don Felder of the Eagles used the Gibson EDS-1275 during the Hotel California tour. Muse guitarist and vocalist Matthew Bellamy uses a silver Manson double-neck on his band's Resistance Tour. Rush guitarist Alex Lifeson is also known for using double-neck guitars in the live performance of several songs. In performances of the song "Xanadu" during the band's 2015 R40 anniversary tour, Lifeson played a white Gibson EDS-1275 double-neck guitar with six-string and twelve-string necks, while bassist Geddy Lee performed with a double-neck Rickenbacker guitar with four-string bass and twelve-string guitar necks. Popular music typically uses the electric guitar in two roles: as a rhythm guitar to provide the basic chord progression and rhythm, and a lead guitar that plays melody lines, melodic instrumental fill passages, and solos. In some bands with two guitarists, both may play in tandem, and trade off rhythm and lead roles. In bands with a single guitarist, the guitarist may switch between these roles, playing chords to accompany the singer's lyrics, and a solo. Gibson Les Paul has been used in many genres, including rock, country, pop, soul, rhythm and blues, blues, jazz, reggae, punk, and heavy metal In the most commercially available and consumed pop and rock genres, electric guitars tend to dominate their acoustic cousins in both the recording studio and live venues, especially in the "harder" genres such as heavy metal and hard rock. However the acoustic guitar remains a popular choice in country, western and especially bluegrass music, and it is widely used in folk music. Even metal and hard rock guitarists play acoustic guitars for some ballads and for MTV unplugged acoustic performances. Jazz guitar playing styles include rhythm guitar-style "comping" (accompanying) with jazz chord voicings (and in some cases, walking basslines) and "blowing" (improvising solos) over jazz chord progressions with jazz-style phrasing and ornaments. The accompanying style for electric guitar in most jazz styles differs from the way chordal instruments accompany in many popular styles of music. In rock and pop, the rhythm guitarist typically performs chords in dense and regular fashion to define a tune's rhythm. Simpler music tends to use chord voicings focused on the first, third, and fifth notes of the chord. In contrast, more complex music styles of pop might intermingle periodic chords and delicate voicings into pauses in the melody or solo. Complex guitar chord voicings are often have no root, especially in chords that have more than six notes. Such chords typically emphasize the third and seventh notes of the chord. These chords also often include the 9th, 11th and 13th notes of the chord, which are called extensions, or color notes. When guitarists who play jazz and other more complex styles improvise, they use scales, modes, and arpeggios associated with the chord progression. The must learn how to use scales (whole tone scale, chromatic scale, etc.) to solo over chord progressions. Soloists try to imbue melodic phrasing with the sense of natural breathing and legato phrasing used by players of other instruments. Jazz guitarists are influenced by trumpet, saxophone, and other horn players. Celtic fingerstyle players are influenced pipes and fiddles. Jazz guitarists typically play hollow-body instruments, but also use solid-body guitars. Hollow-body instruments were the first guitars used in jazz in the 1930s and 1940s. During the 1970s jazz fusion era, many jazz guitarists switched to the solid body guitars that dominated the rock world, using powerful guitar amps for volume. Until the 1950s, the acoustic, nylon-stringed classical guitar was the only type of guitar favored by classical, or art music composers. In the 1950s a few contemporary classical composers began to use the electric guitar in their compositions. Examples of such works include Luciano Berio's Nones (1954) Karlheinz Stockhausen's Gruppen (1955–57); Donald Erb's String Trio (1966), Morton Feldman's The Possibility of a New Work for Electric Guitar (1966); George Crumb's Songs, Drones, and Refrains of Death (1968); Hans Werner Henze's Versuch über Schweine (1968); Francis Thorne's Sonar Plexus (1968) and Liebesrock (1968–69), Michael Tippett's The Knot Garden (1965–70); Leonard Bernstein's MASS (1971) and Slava! (1977); Louis Andriessen's De Staat (1972–76); Helmut Lachenmann's Fassade, für grosses Orchester (1973, rev. 1987), Valery Gavrilin Anyuta (1982), Steve Reich's Electric Counterpoint (1987), Arvo Pärt's Miserere (1989/92), György Kurtág's Grabstein für Stephan (1989), and countless works composed for the quintet of Ástor Piazzolla. Alfred Schnittke also used electric guitar in several works, like the "Requiem", "Concerto Grosso N°2" and "Symphony N°1". In the 1970s, 1980s and 1990s, a growing number of composers (many of them composer-performers who had grown up playing the instrument in rock bands) began writing contemporary classical music for the electric guitar. These include Frank Zappa, Shawn Lane, Steven Mackey, Nick Didkovsky, Scott Johnson, Lois V Vierk, Tim Brady, Tristan Murail, Brian May and Randall Woolf. Yngwie Malmsteen released his Concerto Suite for Electric Guitar and Orchestra in 1998, and Steve Vai released a double-live CD entitled Sound Theories, of his work with the Netherlands Metropole Orchestra in June 2007. The American composers Rhys Chatham and Glenn Branca have written "symphonic" works for large ensembles of electric guitars, in some cases numbering up to 100 players, and the instrument is a core member of the Bang on a Can All-Stars (played by Mark Stewart). Still, like many electric and electronic instruments, the electric guitar remains primarily associated with rock and jazz music, rather than with classical compositions and performances. R. Prasanna plays a style of Indian classical music (Carnatic music) on the electric guitar. In the 21st century, European avant garde composers like Richard Barrett, Fausto Romitelli, Peter Ablinger, Bernhard Lang, Claude Ledoux and Karlheinz Essl have used the electric guitar (together with extended playing techniques) in solo pieces or ensemble works. Probably the most ambitious and perhaps significant work to date is Ingwe (2003–2009) by Georges Lentz (written for Australian guitarist Zane Banks), a 60-minute work for solo electric guitar, exploring that composer's existential struggles and taking the instrument into realms previously unknown in a concert music setting. In Vietnam, electric guitars are often used as an instrument in cải lương music (traditional southern Vietnamese folk opera), sometimes as a substitute for certain traditional stringed instruments like the Đàn nguyệt (two-stringed lute) when they are not available. Electric guitars used in cải lương are played in finger vibrato (string bending), with no amplifiers or sound effects. An electric guitar store
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