Question: What instrument was played by the guitar soloist in While My Guitar Gently Weeps?

full_context: Document 1: While My Guitar Gently Weeps: ``While My Guitar Gently Weeps ''is a song by the English rock band the Beatles from their 1968 double album The Beatles (also known as`` the White Album''). It was written by George Harrison, the band's lead guitarist. The song serves as a comment on the disharmony within the Beatles following their return from studying Transcendental Meditation in India in early 1968. This lack of camaraderie was reflected in the band's initial apathy towards the composition, which Harrison countered by inviting his friend and occasional collaborator, Eric Clapton, to contribute to the recording. Clapton overdubbed a lead guitar part, although he was not formally credited for his contribution.
Document 2: Stevie Blacke: Born in London and raised in Ohio, Blacke grew up with the music of Eric Clapton and Pink Floyd, before he attended the Berklee College of Music to study guitar, mandolin and violin. He learned and first recorded cello during a session for a hip hop artist.
Document 3: Eric Clapton: Clapton was born on 30 March 1945 in Ripley, Surrey, England, to 16-year-old Patricia Molly Clapton (7 January 1929 – March 1999) and Edward Walter Fryer (21 March 1920 – 15 May 1985), a 25-year-old soldier from Montreal, Quebec. Fryer shipped off to war prior to Clapton's birth and then returned to Canada. Clapton grew up believing that his grandmother, Rose, and her second husband, Jack Clapp, Patricia's stepfather, were his parents, and that his mother was actually his older sister. The similarity in surnames gave rise to the erroneous belief that Clapton's real surname is Clapp (Reginald Cecil Clapton was the name of Rose's first husband, Eric Clapton's maternal grandfather). Years later, his mother married another Canadian soldier and moved to Germany, leaving young Eric with his grandparents in Surrey.Clapton received an acoustic Hoyer guitar, made in Germany, for his thirteenth birthday, but the inexpensive steel-stringed instrument was difficult to play and he briefly lost interest. Two years later Clapton picked it up again and started playing consistently. Clapton was influenced by the blues from an early age, and practised long hours to learn the chords of blues music by playing along to the records. He preserved his practice sessions using his portable Grundig reel-to-reel tape recorder, listening to them over and over until he felt he'd got it right.In 1961, after leaving Hollyfield School in Surbiton, Clapton studied at the Kingston College of Art but was dismissed at the end of the academic year because his focus remained on music rather than art. His guitar playing was so advanced that, by the age of 16, he was getting noticed. Around this time, Clapton began busking around Kingston, Richmond, and the West End.
Document 4: While My Guitar Gently Weeps: ``While My Guitar Gently Weeps ''is a song by the English rock band the Beatles from their 1968 double album The Beatles (also known as`` the White Album''). It was written by George Harrison, partly as an exercise in randomness after he consulted the Chinese I Ching. The song also serves as a comment on the disharmony within the Beatles at the time. The recording includes a lead guitar part played by Eric Clapton, although he was not formally credited for his contribution.
Document 5: London: London has numerous venues for rock and pop concerts, including the world's busiest arena the o2 arena and other large arenas such as Earls Court, Wembley Arena, as well as many mid-sized venues, such as Brixton Academy, the Hammersmith Apollo and the Shepherd's Bush Empire. Several music festivals, including the Wireless Festival, South West Four, Lovebox, and Hyde Park's British Summer Time are all held in London. The city is home to the first and original Hard Rock Cafe and the Abbey Road Studios where The Beatles recorded many of their hits. In the 1960s, 1970s and 1980s, musicians and groups like Elton John, Pink Floyd, David Bowie, Queen, The Kinks, The Rolling Stones, The Who, Eric Clapton, Led Zeppelin, The Small Faces, Iron Maiden, Fleetwood Mac, Elvis Costello, Cat Stevens, The Police, The Cure, Madness, The Jam, Dusty Springfield, Phil Collins, Rod Stewart and Sade, derived their sound from the streets and rhythms vibrating through London.
Document 6: London: London was instrumental in the development of punk music, with figures such as the Sex Pistols, The Clash, and Vivienne Westwood all based in the city. More recent artists to emerge from the London music scene include George Michael, Kate Bush, Seal, Siouxsie and the Banshees, Bush, the Spice Girls, Jamiroquai, Blur, The Prodigy, Gorillaz, Mumford & Sons, Coldplay, Amy Winehouse, Adele, Ed Sheeran and One Direction. London is also a centre for urban music. In particular the genres UK garage, drum and bass, dubstep and grime evolved in the city from the foreign genres of hip hop and reggae, alongside local drum and bass. Black music station BBC Radio 1Xtra was set up to support the rise of home-grown urban music both in London and in the rest of the UK.
Document 7: While My Guitar Gently Weeps: George Harrison -- double - tracked vocals, backing vocal, acoustic guitar, twelve - string guitar, Hammond organ Paul McCartney -- harmony vocal, piano, bass John Lennon -- electric guitar with tremolo Ringo Starr -- drums, tambourine, castanets Eric Clapton -- lead guitar (uncredited)
Document 8: While My Guitar Gently Weeps: On 6 September, during a ride from Surrey into London, Harrison asked Clapton to play guitar on the track. Clapton, who recognised Harrison's talent as a songwriter, and considered that his abilities had long been held back by Lennon and McCartney, was nevertheless reluctant to participate; he later recalled that his initial response was: ``I ca n't do that. Nobody ever plays on Beatles records. ''Harrison convinced him, and Clapton's lead guitar part, played on Harrison's Gibson Les Paul electric guitar`` Lucy'' (a recent gift from Clapton), was overdubbed that evening. Recalling the session in his 2007 autobiography, Clapton says that, while Lennon and McCartney were ``fairly non-committal '', he thought the track`` sounded fantastic'', adding: ``I knew George was happy, because he listened to it over and over in the control room. ''
Document 9: Robin Blaze: The son of Peter, a professional golfer, and Christine, Robin Blaze, with his brother Mark, grew up in Shadwell, near Leeds, and was educated at Leeds Grammar School, Uppingham School, and Magdalen College, Oxford. Having made his first solo recordings as a treble with Stephen Lomas, Blaze was both a chorister and an academical clerk at Magdalen College where he recorded with the Dufay Consort. After graduating, he won a scholarship for postgraduate studies at the Royal College of Music, where he continued to study with Michael Chance and Ashley Stafford. After completing his education, he took a position as professor of Vocal Studies at the Royal College. He has also studied flute, piano, and organ.
Document 10: Steve Smith (American Dad!): A freshman at Pearl Bailey High School, Steve is a highly capable musician, having taken up the cello to once impress a girl. In a later episode, however, Steve says that he has been playing the cello since he was nine. Steve also plays guitar and sings, which he did as part of a band in the episode ``American Dream Factory. ''In fact, both of the songs Steve's band rehearses (`` Livin 'on the Run'' and ``Sunset Blvd ''), were originally recorded by Scott Grimes, who voices Steve. Among Steve's other talents are being able to read Elvish, use Morse code, and communicate with dolphins.
Document 11: While My Guitar Gently Weeps: Among other cover versions, the song has also been recorded by guitarists such as Marc Ribot, Phish and Charlie Byrd, and on ukulele by Jake Shimabukuro. Toto did a cover version for their album Through the Looking Glass and in a live performance in Live in Amsterdam. Santana did a cover for his twentieth album Guitar Heaven: The Greatest Guitar Classics of All Time, in 2010, featuring singer India Arie and cellist Yo - Yo Ma. Released as a single, it charted on Billboard's Adult Contemporary. In 2016, Regina Spektor performed the song for the soundtrack to the film Kubo and the Two Strings, accompanied by Kevin Kmetz on a shamisen.
Document 12: Mandolin: Mandolin has also been used in blues music, most notably by Ry Cooder, who performed outstanding covers on his very first recordings, Yank Rachell, Johnny "Man" Young, Carl Martin, and Gerry Hundt. Howard Armstrong, who is famous for blues violin, got his start with his father's mandolin and played in string bands similar to the other Tennessee string bands he came into contact with, with band makeup including "mandolins and fiddles and guitars and banjos. And once in a while they would ease a little ukulele in there and a bass fiddle." Other blues players from the era's string bands include Willie Black (Whistler And His Jug Band), Dink Brister, Jim Hill, Charles Johnson, Coley Jones (Dallas String Band), Bobby Leecan (Need More Band), Alfred Martin, Charlie McCoy (1909-1950), Al Miller, Matthew Prater, and Herb Quinn.
Document 13: Wah-Wah (song): "Wah-Wah" is a song by English musician George Harrison, released on his 1970 triple album "All Things Must Pass". Harrison wrote the song following his temporary departure from the Beatles in January 1969, during the troubled "Get Back" sessions that resulted in their "Let It Be" album and film. The lyrics reflect his frustration with the atmosphere in the group at that time – namely, Paul McCartney's over-assertiveness and criticism of his guitar playing, John Lennon's lack of engagement with the project and dismissal of Harrison as a songwriter, and Yoko Ono's constant involvement in the band's activities. Music critics and biographers recognise the song as Harrison's statement of personal and artistic freedom from the Beatles. Its creation contrasted sharply with his rewarding collaborations outside the group in the months before the "Get Back" project, particularly with Bob Dylan and the Band in upstate New York.
Document 14: While My Guitar Gently Weeps: ``While My Guitar Gently Weeps ''Cover of the Apple Publishing sheet music Song by the Beatles from the album The Beatles Published Harrisongs Released 22 November 1968 (1968 - 11 - 22) Recorded 5 -- 6 September 1968 Studio EMI Studios, London Genre Heavy rock, blues Length 4: 46 Label Apple Songwriter (s) George Harrison Producer (s) George Martin Audio sample file help
Document 15: Here Comes the Sun: ``Here Comes the Sun ''is a song written by George Harrison that was first released on the Beatles' 1969 album Abbey Road. Along with`` Something'' and ``While My Guitar Gently Weeps '', it is one of Harrison's best - known compositions from the Beatles era. The song was written at the country house of his friend Eric Clapton, where Harrison had chosen to play truant for the day, to avoid attending a meeting at the Beatles' Apple Corps organisation. The lyrics reflect the composer's relief at both the arrival of spring and the temporary respite he was experiencing from the band's business affairs.
ground_truth: violin
sub_queries: who plays the guitar solo in while my guitar gently weeps Answer: Eric Clapton
Eric Clapton >> instrument Answer: violin