The Memphis blues is a style of blues music created from the 1910s to the 1930s by musicians in the Memphis area, like Frank Stokes, Sleepy John Estes, Furry Lewis and Memphis Minnie. The style was popular in vaudeville and medicine shows and was associated with Beale Street, the main entertainment area in Memphis, W. C. Handy, the "Father of the Blues", published the song "The Memphis Blues". In lyrics, the phrase has been used to describe a depressed mood. In addition to guitar-based blues, jug bands, such as Gus Cannon's Jug Stompers and the Memphis Jug Band, were popular practitioners of Memphis blues; the jug band style emphasized the danceable, syncopated rhythms of early jazz and a range of other folk styles. It was played on simple, sometimes homemade, instruments such as harmonicas, mandolins and guitars, backed by washboards, kazoo and jugs blown to supply the bass. After World War II, as African Americans left the Mississippi Delta and other impoverished areas of the South for urban areas, many musicians gravitated to the blues scene in Memphis, changing the classic Memphis blues sound.
Musicians such as Howlin' Wolf, Willie Nix, Ike Turner, B. B. King performed on Beale Street and in West Memphis and recorded some of the classic electric blues, rhythm-and-blues and rock-and-roll records for labels such as Sam Phillips's Sun Records. Sun recorded Howlin' Wolf, Willie Nix, Ike Turner, B. B. King and others. Electric Memphis blues featured "explosive, distorted electric guitar work, thunderous drumming, fierce, declamatory vocals." Musicians associated with Sun Records included Willie Johnson and Pat Hare. Albert King B. B. King Bobby Sowell Doctor Ross Elvis Presley Frank Stokes Furry Lewis Gus Cannon Howlin' Wolf Ida Cox James Cotton Joe Hill Louis John Lee Hooker Junior Parker Junior Wells Little Milton Memphis Minnie Mississippi John Hurt Mose Vinson Noah Lewis Pat Hare Sleepy John Estes Robert Wilkins Rosco Gordon Willie Johnson Willie Nix List of Memphis blues musicians Memphis Blues Society
Blues rock is a fusion genre combining elements of blues and rock. It is an electric ensemble-style music with instrumentation similar to electric blues and rock: electric guitar, electric bass, drums with Hammond organ. From its beginnings in the early- to mid-1960s, blues rock has gone through several stylistic shifts and along the way it inspired and influenced hard rock, Southern rock, early heavy metal. Blues rock continues to be an influence in the 2010s, with performances and recordings by popular artists. Blues rock started with rock musicians in the United Kingdom and the United States performing American blues songs, they recreated electric Chicago-style blues songs, such as those by Muddy Waters, Jimmy Reed, Howlin' Wolf, Albert King, at faster tempos and with a more aggressive sound common to rock. In the UK, the style was popularized by groups such as the Rolling Stones, the Yardbirds, the Animals, who managed to place blues songs into the pop charts. In the US, Lonnie Mack, the Paul Butterfield Blues Band, Canned Heat were among the earliest exponents and "attempted to play long, involved improvisations which were commonplace on jazz records".
John Mayall & the Bluesbreakers and Peter Green's Fleetwood Mac developed this more instrumental, but traditional-based style in the UK, while late 1960s and early 1970s groups, including Ten Years After, Savoy Brown, the Climax Blues Band and Foghat became more hard rock oriented. In the US, Johnny Winter, the Allman Brothers Band, ZZ Top represented a hard rock trend. Although around this time, the differences between blues rock and hard rock lessened, there was a return to more blues-influenced styles. In the 1980s, the Fabulous Thunderbirds and Stevie Ray Vaughan, recorded their best-known works and the 1990s saw guitarists Gary Moore, Jeff Healey, Kenny Wayne Shepherd become popular concert attractions. Groups such as the Jon Spencer Blues Explosion and the White Stripes, brought an edgier, more diverse style into the 2000s, as do contemporary artists such as the Black Keys. Blues rock can be characterized by bluesy improvisation, the twelve-bar blues, extended boogie jams focused on the electric guitar player, a heavier, riff-oriented sound and feel to the songs than might be found in traditional Chicago-style blues.
Blues rock bands "borrow the idea of an instrumental combo and loud amplification from rock & roll". It is often played at a fast tempo, again distinguishing it from the blues; the core blues rock sound is created by bass guitar and drum kit. Bands included a harmonica called "a harp." The electric guitar is amplified through a tube guitar amplifier or using an overdrive effect. Two guitars are commonplace in blues rock bands: one guitarist focused on rhythm guitar, playing riffs and chords as accompaniment. While 1950s-era blues bands would sometimes still use the upright bass, the blues rock bands of the 1960s used the electric bass, easier to amplify to loud volumes. Keyboard instruments, such as the piano and Hammond organ, are occasionally used; as with the electric guitar, the sound of the Hammond organ is amplified with a tube amplifier, which gives a growling, "overdriven" sound quality to the instrument. Vocals typically play a key role, although the vocals may be equal in importance or subordinate to the lead guitar playing.
As well, a number of blues rock pieces are instrumental-only. Blues rock pieces follow typical blues structures, such as twelve-bar blues, sixteen-bar blues, etc, they use the I-IV-V progression, though there are exceptions, some pieces having a "B" section, while others remain on the I. The Allman Brothers Band's version of "Stormy Monday", which uses chord substitutions based on Bobby "Blue" Bland's 1961 rendition, adds a solo section where "the rhythm shifts effortlessly into an uptempo 6/8-time jazz feel"; the key is major, but can be minor, such as in "Black Magic Woman". One notable difference is the frequent use of a straight eighth-note or rock rhythm instead of triplets found in blues. An example is Cream's "Crossroads". Although it was adapted from Robert Johnson's "Cross Road Blues", the bass "combines with drums to create and continually emphasize continuity in the regular metric drive". Cream uses some of the lyrics from "Traveling Riverside Blues" to create their own interpretation of the song.
Rock and blues have always been linked, with driving rhythms and electric guitar techniques such as distortion and power chords used by 1950s blues guitarists Memphis bluesmen such as Joe Hill Louis, Willie Johnson and Pat Hare. Characteristics that blues rock adopted from electric blues include its dense texture, basic blues band instrumentation, rough declamatory vocal style, heavy guitar riffs, string-bending blues-scale guitar solos, strong beat, thick riff-laden texture, posturing performances. Precursors to blues rock included the Chicago blues musicians Elmore James, Albert King, Freddie King, who began incorporating rock and roll elements into their blues music during the late 1950s to early 1960s. In 1963, American rockabilly soloist Lonnie Mack had an idiosyncratic, fast-paced electric blues guitar style that came to be identified with blues rock, his instrumentals from that period were recognizable as blues or R&B tunes, but he relied upon fast-picking techniques derived from traditional American country and bluegrass genres.
The best-known of these are the 1963 hit singles "Memphis" and "Wham!". However, blues rock was not named as such, or recognized as a distinct movement w
The United States of America known as the United States or America, is a country composed of 50 states, a federal district, five major self-governing territories, various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U. S. is the third most populous country. The capital is Washington, D. C. and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico; the State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean; the U. S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The diverse geography and wildlife of the United States make it one of the world's 17 megadiverse countries.
Paleo-Indians migrated from Siberia to the North American mainland at least 12,000 years ago. European colonization began in the 16th century; the United States emerged from the thirteen British colonies established along the East Coast. Numerous disputes between Great Britain and the colonies following the French and Indian War led to the American Revolution, which began in 1775, the subsequent Declaration of Independence in 1776; the war ended in 1783 with the United States becoming the first country to gain independence from a European power. The current constitution was adopted in 1788, with the first ten amendments, collectively named the Bill of Rights, being ratified in 1791 to guarantee many fundamental civil liberties; the United States embarked on a vigorous expansion across North America throughout the 19th century, acquiring new territories, displacing Native American tribes, admitting new states until it spanned the continent by 1848. During the second half of the 19th century, the Civil War led to the abolition of slavery.
By the end of the century, the United States had extended into the Pacific Ocean, its economy, driven in large part by the Industrial Revolution, began to soar. The Spanish–American War and World War I confirmed the country's status as a global military power; the United States emerged from World War II as a global superpower, the first country to develop nuclear weapons, the only country to use them in warfare, a permanent member of the United Nations Security Council. Sweeping civil rights legislation, notably the Civil Rights Act of 1964, the Voting Rights Act of 1965 and the Fair Housing Act of 1968, outlawed discrimination based on race or color. During the Cold War, the United States and the Soviet Union competed in the Space Race, culminating with the 1969 U. S. Moon landing; the end of the Cold War and the collapse of the Soviet Union in 1991 left the United States as the world's sole superpower. The United States is the world's oldest surviving federation, it is a representative democracy.
The United States is a founding member of the United Nations, World Bank, International Monetary Fund, Organization of American States, other international organizations. The United States is a developed country, with the world's largest economy by nominal GDP and second-largest economy by PPP, accounting for a quarter of global GDP; the U. S. economy is post-industrial, characterized by the dominance of services and knowledge-based activities, although the manufacturing sector remains the second-largest in the world. The United States is the world's largest importer and the second largest exporter of goods, by value. Although its population is only 4.3% of the world total, the U. S. holds 31% of the total wealth in the world, the largest share of global wealth concentrated in a single country. Despite wide income and wealth disparities, the United States continues to rank high in measures of socioeconomic performance, including average wage, human development, per capita GDP, worker productivity.
The United States is the foremost military power in the world, making up a third of global military spending, is a leading political and scientific force internationally. In 1507, the German cartographer Martin Waldseemüller produced a world map on which he named the lands of the Western Hemisphere America in honor of the Italian explorer and cartographer Amerigo Vespucci; the first documentary evidence of the phrase "United States of America" is from a letter dated January 2, 1776, written by Stephen Moylan, Esq. to George Washington's aide-de-camp and Muster-Master General of the Continental Army, Lt. Col. Joseph Reed. Moylan expressed his wish to go "with full and ample powers from the United States of America to Spain" to seek assistance in the revolutionary war effort; the first known publication of the phrase "United States of America" was in an anonymous essay in The Virginia Gazette newspaper in Williamsburg, Virginia, on April 6, 1776. The second draft of the Articles of Confederation, prepared by John Dickinson and completed by June 17, 1776, at the latest, declared "The name of this Confederation shall be the'United States of America'".
The final version of the Articles sent to the states for ratification in late 1777 contains the sentence "The Stile of this Confederacy shall be'The United States of America'". In June 1776, Thomas Jefferson wrote the phrase "UNITED STATES OF AMERICA" in all capitalized letters in the headline of his "original Rough draught" of the Declaration of Independence; this draft of the document did not surface unti
Distortion and overdrive are forms of audio signal processing used to alter the sound of amplified electric musical instruments by increasing their gain, producing a "fuzzy", "growling", or "gritty" tone. Distortion is most used with the electric guitar, but may be used with other electric instruments such as bass guitar, electric piano, Hammond organ. Guitarists playing electric blues obtained an overdriven sound by turning up their vacuum tube-powered guitar amplifiers to high volumes, which caused the signal to distort. While overdriven tube amps are still used to obtain overdrive in the 2010s in genres like blues and rockabilly, a number of other ways to produce distortion have been developed since the 1960s, such as distortion effect pedals; the growling tone of distorted electric guitar is a key part of many genres, including blues and many rock music genres, notably hard rock, punk rock, hardcore punk, acid rock, heavy metal music. The effects alter the instrument sound by clipping the signal, adding sustain and harmonic and inharmonic overtones and leading to a compressed sound, described as "warm" and "dirty", depending on the type and intensity of distortion used.
The terms distortion and overdrive are used interchangeably. Fuzz is a particular form of extreme distortion created by guitarists using faulty equipment, emulated since the 1960s by a number of "fuzzbox" effects pedals. Distortion and fuzz can be produced by effects pedals, pre-amplifiers, power amplifiers, speakers and by digital amplifier modeling devices and audio software; these effects are used with electric guitars, electric basses, electronic keyboards, more as a special effect with vocals. While distortion is created intentionally as a musical effect and sound engineers sometimes take steps to avoid distortion when using PA systems to amplify vocals or when playing back prerecorded music; the first guitar amplifiers were low-fidelity, would produce distortion when their volume was increased beyond their design limit or if they sustained minor damage. Around 1945, Western-swing guitarist Junior Barnard began experimenting with a rudimentary humbucker pick-up and a small amplifier to obtain his signature "low-down and dirty" bluesy sound.
Many electric blues guitarists, including Chicago bluesmen such as Elmore James and Buddy Guy, experimented in order to get a guitar sound that paralleled the rawness of blues singers such as Muddy Waters and Howlin' Wolf, replacing their originals with the powerful Valco "Chicagoan" pick-ups created for lap-steel, to obtain a louder and fatter tone. In early rock music, Goree Carter's "Rock Awhile" featured an over-driven electric guitar style similar to that of Chuck Berry several years as well as Joe Hill Louis' "Boogie in the Park". In the early 1950s, pioneering rock guitarist Willie Johnson of Howlin' Wolf′s band began deliberately increasing gain beyond its intended levels to produce "warm" distorted sounds. Guitar Slim experimented with distorted overtones, which can be heard in his hit electric blues song "The Things That I Used to Do". Chuck Berry's 1955 classic "Maybellene" features a guitar solo with warm overtones created by his small valve amplifier. Pat Hare produced distorted power chords on his electric guitar for records such as James Cotton's "Cotton Crop Blues" as well as his own "I'm Gonna Murder My Baby", creating "a grittier, more ferocious electric guitar sound," accomplished by turning the volume knob on his amplifier "all the way to the right until the speaker was screaming."In the mid-1950s, guitar distortion sounds started to evolve based on sounds created earlier in the decade by accidental damage to amps, such as in the popular early recording of the 1951 Ike Turner and the Kings of Rhythm song "Rocket 88", where guitarist Willie Kizart used a vacuum tube amplifier that had a speaker cone damaged in transport.
Rock guitarists began intentionally "doctoring" amplifiers and speakers in order to emulate this form of distortion. In 1956, guitarist Paul Burlison of the Johnny Burnette Trio deliberately dislodged a vacuum tube in his amplifier to record "The Train Kept A-Rollin" after a reviewer raved about the sound Burlison's damaged amplifier produced during a live performance. According to other sources Burlison's amp had a broken loudspeaker cone. Pop-oriented producers were horrified by that eerie "two-tone" sound, quite clean on trebles but distorted on basses, but Burnette insisted to publish the sessions, arguing that "that guitar sounds like a nice horn section". In the late 1950s, Guitarist Link Wray began intentionally manipulating his amplifiers' vacuum tubes to create a "noisy" and "dirty" sound for his solos after a accidental discovery. Wray poked holes in his speaker cones with pencils to further distort his tone, used electronic echo chambers, the recent powerful and "fat" Gibson humbucker pickups, controlled "feedback".
The resultant sound can be heard on his influential 1958 instrumental, "Rumble" and Rawhide. In 1961, Grady Martin scored a hit with a fuzzy tone caused by a faulty preamplifier that distorted his guitar playing on the Marty Robbins song "Don't Worry"; that year Martin recorded an instrumental tune under his own name, using the same faulty pr
Saint Paul, Minnesota
Saint Paul is the capital and second-most populous city of the U. S. state of Minnesota. As of 2017, the city's estimated population was 309,180. Saint Paul is the county seat of Ramsey County, the smallest and most densely populated county in Minnesota; the city lies on the east bank of the Mississippi River in the area surrounding its point of confluence with the Minnesota River, adjoins Minneapolis, the state's largest city. Known as the "Twin Cities", the two form the core of Minneapolis–Saint Paul, the 16th-largest metropolitan area in the United States, with about 3.6 million residents. Founded near historic Native American settlements as a trading and transportation center, the city rose to prominence when it was named the capital of the Minnesota Territory in 1849; the Dakota name for Saint Paul is "Imnizaska". Though Minneapolis is better-known nationally, Saint Paul contains the state government and other important institutions. Regionally, the city is known for the Xcel Energy Center, home of the Minnesota Wild, for the Science Museum of Minnesota.
As a business hub of the Upper Midwest, it is the headquarters of companies such as Ecolab. Saint Paul, along with its twin city, Minneapolis, is known for its high literacy rate; the settlement began at present-day Lambert's Landing, but was known as Pig's Eye after Pierre "Pig's Eye" Parrant established a popular tavern there. When Lucien Galtier, the first Catholic pastor of the region, established the Log Chapel of Saint Paul, he made it known that the settlement was now to be called by that name, as "Saint Paul as applied to a town or city was well appropriated, this monosyllable is short, sounds good, it is understood by all Christian denominations". Burial mounds in present-day Indian Mounds Park suggest that the area was inhabited by the Hopewell Native Americans about two thousand years ago. From the early 17th century until 1837, the Mdewakanton Dakota, a tribe of the Sioux, lived near the mounds after fleeing their ancestral home of Mille Lacs Lake from advancing Ojibwe, they called the area I-mni-za ska dan for its exposed white sandstone cliffs.
In the Menominee language it is called Sāēnepān-Menīkān, which means "ribbon, silk or satin village", suggesting its role in trade throughout the region after the introduction of European goods. Following the Louisiana Purchase in 1803, US Army officer Zebulon Pike negotiated 100,000 acres of land from the local Dakota tribes in 1805 to establish a fort; the negotiated territory was located on both banks of the Mississippi River, starting from Saint Anthony Falls in present-day Minneapolis, to its confluence with the Saint Croix River. Fort Snelling was built on the territory in 1819 at the confluence of the Mississippi and Minnesota rivers, which formed a natural barrier to both Native American nations; the 1837 Treaty with the Sioux ceded all local tribal land east of the Mississippi to the U. S. Government. Taoyateduta moved his band at Kaposia across the river to the south. Fur traders and missionaries came to the area for the fort's protection. Many of the settlers were French-Canadians. However, as a whiskey trade flourished, military officers banned settlers from the fort-controlled lands.
Pierre "Pig's Eye" Parrant, a retired fur trader-turned-bootlegger who irritated officials, set up his tavern, the Pig's Eye, near present-day Lambert's Landing. By the early 1840s, the community had become important as a trading center and a destination for settlers heading west. Locals called Pig's Eye Landing after Parrant's popular tavern. In 1841, Father Lucien Galtier was sent to minister to the Catholic French Canadians and established a chapel, named for his favorite saint, Paul the Apostle, on the bluffs above Lambert's Landing. Galtier intended for the settlement to adopt the name Saint Paul in honor of the new chapel. In 1847, a New York educator named Harriet Bishop moved to the area and opened the city's first school; the Minnesota Territory was formalized in Saint Paul named as its capital. In 1857, the territorial legislature voted to move the capital to Saint Peter. However, Joe Rolette, a territorial legislator, stole the physical text of the approved bill and went into hiding, thus preventing the move.
On May 11, 1858, Minnesota was admitted to the union as the thirty-second state, with Saint Paul as the capital. That year, more than 1,000 steamboats were in service at Saint Paul, making the city a gateway for settlers to the Minnesota frontier or Dakota Territory. Natural geography was a primary reason; the area was the last accessible point to unload boats coming upriver due to the Mississippi River Valley's stone bluffs. During this period, Saint Paul was called "The Last City of the East." Industrialist James J. Hill constructed and expanded his network of railways into the Great Northern Railway and Northern Pacific Railway, which were headquartered in Saint Paul. Today they are collectively part of the BNSF Railway. On August 20, 1904, severe thunderstorms and tornadoes damaged hundreds of downtown buildings, causing USD $1.78 million in damages to the city and ripping spans from the High Bridge. In the 1960s, during urban renewal, Saint Paul razed western neighborhoods close to downtown.
The city contended with the creation of the interstate freeway system in a built landscape. From 1959 to 1961, the western Rondo Neighborhood was demolished by the construction of Interstate 94, which brought attention to racial segregation and unequal housing in northern cities; the annual
A guitarist is a person who plays the guitar. Guitarists may play a variety of guitar family instruments such as classical guitars, acoustic guitars, electric guitars, bass guitars; some guitarists accompany themselves on the guitar by playing the harmonica. The guitarist may employ any of several methods for sounding the guitar, including finger picking, depending on the type of strings used, including strumming with the fingers, or a guitar pick made of bone, plastic, felt, leather, or paper, melodic flatpicking and finger-picking; the guitarist may employ various methods for selecting notes and chords, including fingering, the barre, and'bottleneck' or steel-guitar slides made of glass or metal. These left- and right-hand techniques may be intermixed in performance. Several magazines and websites have compiled what they intend as lists of the greatest guitarists—for example The 100 Greatest Guitarists of All Time by Rolling Stone magazine, or 100 Greatest Guitarists of All Time by Guitar World magazine.
Rolling Stone In 2003, Rolling Stone magazine published a list called The 100 Greatest Guitarists of All Time. This list included 100 guitarists whom the magazine editor David Fricke considered the best, with a brief introduction for each of them; the first in this list is the American guitarist Jimi Hendrix introduced by Pete Townshend, guitarist for The Who, who was, in his turn, ranked at #50 in the list. In describing the list to readers, Paul MacInnes from British newspaper The Guardian wrote, "Surprisingly enough for an American magazine, the top 10 is fair jam-packed with Yanks," though he noted three exceptions in the top 10; the online magazine Blogcritics criticized the list for introducing some undeserving guitarists while forgetting some artists the writer considered more worthy, such as Johnny Marr, Al Di Meola, Phil Keaggy or John Petrucci. In 2011, Rolling Stone updated the list, which this time was chosen by a panel of guitarists and other experts with the top 5 consisting of Jimi Hendrix, Eric Clapton, Jimmy Page, Keith Richards and Jeff Beck.
Artists who had not been included in the previous list were added. Rory Gallagher, for example, was ranked in 57th place; the 100 Greatest Guitarists of All Time is mentioned in many biographies about artists who appear in the list. Guitar World Guitar World, a monthly music magazine devoted to the guitar published their list of 100 greatest guitarists in the book Guitar World Presents the 100 Greatest Guitarists of All Time from the Pages of Guitar World Magazine. Different from the Rolling Stone list, which listed guitarists in descending order, Guitar World divided guitarists by music genre—such as "Lords of Hard Rock" for hard rock artists or "Jazzmen" for jazz players. Despite the appearance in other magazines like Billboard, this publication by Guitar World was criticized for including no female musicians within its selection. However, Guitar World published a list of "Eight Amazing Female Acoustic Players," including Kaki King, Muriel Anderson and Sharon Isbin. TIME and others Following the death of Les Paul, TIME website presented their list of 10 greatest artists in electric guitar.
As in Rolling Stone magazine's list, Jimi Hendrix was chosen as the greatest guitarist followed by Slash from Guns'N' Roses, B. B. King, Keith Richards, Jimmy Page, Eric Clapton. Gigwise.com, an online music magazine ranks Jimi Hendrix as the greatest guitarist followed by Jimmy Page, B. B. King, Keith Richards and Kirk Hammett. There are many classical guitarists listed as notable in their respective epochs. In recent decades, the most "notable classical and cross genre" guitarist was Paco de Lucía, one of the first flamenco guitarists to have crossed over into other genres of music such as classical and jazz. Richard Chapman and Eric Clapton, authors of Guitar: Music, Players, describe de Lucía as a "titanic figure in the world of flamenco guitar", Dennis Koster, author of Guitar Atlas, has referred to de Lucía as "one of history's greatest guitarists.". Media related to Guitarists at Wikimedia Commons
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, fingerpicks, slaps or taps the strings; the pickup uses electromagnetic induction to create this signal, which being weak is fed into a guitar amplifier before being sent to the speaker, which converts it into audible sound. The electric signal can be electronically altered to change the timbre of the sound; the signal is modified using effects such as reverb, distortion and "overdrive". Invented in 1931, the 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, Charlie Christian. During the 1950s and 1960s, the electric guitar became the most important instrument in popular music, it has evolved into an instrument, capable of a multitude of sounds and styles in genres ranging from pop and rock to country music and jazz.
It served as a major component in the development of electric blues and roll, rock music, heavy metal music and many other genres of music. Electric guitar design and construction varies in the shape of the body and the configuration of the neck 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 and hammering-on, using audio feedback, or slide guitar playing. There are several types of electric guitar, including: the solid-body guitar. In pop and rock music, the electric guitar is used in two roles: as a rhythm guitar, which plays the chord sequences or progressions, riffs, sets the beat. In a small group, such as a power trio, one guitarist switches between both roles. In large rock and metal bands, there is 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. 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. Electric guitars were designed by acoustic guitar makers and instrument manufacturers; the demand for amplified guitars began during the big band era. The first electric guitars used in jazz were hollow archtop acoustic guitar bodies with electromagnetic transducers. Early electric guitar manufacturers include Rickenbacker in 1932; the first electrically amplified stringed instrument to be marketed commercially was designed in 1931 by George Beauchamp, the general manager of the National Guitar Corporation, with Paul Barth, 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, in Los Angeles, a partnership of Beauchamp, Adolph Rickenbacker, 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 issued in 1937. By early-mid 1935, Electro String Instrument Corporation had achieved mainstream success with the A-22 "Frying Pan" steel guitar, set out to capture a new audience through its release of the Electro-Spanish Model B and the Electro-Spanish Ken Roberts, the first full 25" scale electric guitar produced; the Electro-Spanish Ken Roberts was revolutionary for its time, providing players a full 25" scale, with easy access to 17 frets free of the body. 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 the first instrument to feature a hand-operated vibrato as a standard appointment, a device called the "Vibrola," invented by Doc Kauffman.
It is estimated that fewer than 50 Electro-Spanish Ken Roberts were constructed between 1933 and 1937. The solid-body electric guitar is made without functionally resonating air spaces; the first solid-body Spanish standard guitar was offered by Vivi-Tone no than 1934. This model featured a guitar-shaped body of a single sheet