Question: Who is the performer of Live at the Richard Pitman's employer?

full_context: Document 1: BBC Sessions (Cocteau Twins album): BBC Sessions is an album of BBC studio recordings by the band Cocteau Twins released in 1999 by Bella Union in the UK and Rykodisc in the US. The album spanned the band's career from the early 1980s through the 1990s. Much of the first disk was taken from a series of early 1980s Peel sessions. The second disk contained several tracks recorded during the group's performance on the 1980s Radio 1 series "Saturday Live". The compilation peaked at No. 87 on the UK Albums Chart.
Document 2: Margareta Bergman: Margareta Bergman was married to English author and broadcaster Paul Britten Austin from 1951 until his death in 2005. She had four children, Veronica Ralston (born 1951, who translated some of her books), Thomas Britten Austin, Rose Britten Austin (a sculptor), and Cecelia Britten Austin.
Document 3: Rowan Atkinson: Rowan Atkinson married Sunetra Sastry in February 1990. They have two children, Ben and Lily. The couple first met in the late 1980s, when she was working as a makeup artist with the BBC. They separated in 2014 and were divorced on 10 November 2015. Atkinson has been in a relationship with comedian Louise Ford since 2014; she gave birth to Atkinson's third child in December 2017.
Document 4: Katie & Peter: The Katie & Peter franchise is a series of ITV2 shows that documented glamour model Katie Price and her former husband Peter Andre. The franchise included several fly on the wall reality series and a short lived late-night chat show. The pair's separation has resulted in individual shows related to the franchise being recorded, including "Katie" and "".
Document 5: Now and Live: Now & Live is a double CD compilation-like album released in 1997 by Paul Rodgers of Free and Bad Company fame. In fact, it is a re-release of the studio album "Now" including a disc of live material recorded in 1995 and issued on the album "".
Document 6: Billy Connolly: In 1985, he divorced Iris Pressagh, his wife of sixteen years (they had separated four years earlier) and he was awarded custody of their children Jamie and Cara. That same year, he performed An Audience with..., which was videotaped at the South Bank Television Centre in front of a celebrity audience for ITV. The uncut, uncensored version was subsequently released on video. In July 1985, he performed at the Wembley leg of Live Aid, immediately preceding Elton John.
Document 7: Richard Pitman: He joined the BBC TV racing team in 1975. As an author he has written seven racing novels and five non-fiction books. He was married to Jenny Pitman; they divorced in 1977. Their son, Mark Pitman, was also a jockey and trainer.
Document 8: Live on Blueberry Hill: The audience recording is one of the first Led Zeppelin bootlegs, and one of the first ever rock and roll bootlegs. It was released on the Blimp label. The album was reissued on the Trademark of Quality label and shipped to England. The album sold so many copies that many fans thought it was a legal release. The sleeve notes describe it as "One hundred and six minutes and fifty three seconds of pure alive rock."
Document 9: BBC Sessions (Led Zeppelin album): BBC Sessions is a compilation album featuring studio sessions and a live concert recorded by English rock group Led Zeppelin for the BBC. It was released on 11 November 1997, by Atlantic Records. Disc one consists of material from four different 1969 BBC sessions. Disc two contains most of the 1 April 1971 concert from the Paris Theatre in London. Disc three was only included in a limited run of album releases and features rare interviews from 1969, 1976/1977, and 1990.
Document 10: Live at the BBC (Sandy Denny album): Live at the BBC is a four disc compilation of British folk singer songwriter Sandy Denny's BBC sessions from 1966 to 1973 and contains almost all her solo work for the corporation. Disc 4 of the set is a DVD of Denny performing three songs on the music programme "One in ten" in 1971: the only surviving solo footage of her. This compilation superseded the earlier one-disc set issued on the Strange Fruit label in 1997 that due to rights issues was withdrawn on the day of release thereby creating a highly collectable disc up until the release of this comprehensive set.
Document 11: Derek Robinson (novelist): After attending Cotham Grammar School, Robinson served in the Royal Air Force as a fighter plotter, during his National Service. He has a History degree from Cambridge University, where he attended Downing College, has worked in advertising in the UK and the US and as a broadcaster on radio and television. He was a qualified rugby referee for over thirty years and is a life member of Bristol Society of Rugby Referees. He was married in 1964.
Document 12: Live at the BBC (Fleetwood Mac album): Live at the BBC is a double compact disc compilation album by British blues rock band Fleetwood Mac, recorded at various BBC radio sessions between 1967 and 1971. It contains many tracks by Fleetwood Mac which are otherwise unavailable.
Document 13: Pete Mead: He was defeated in his last fight by Rocky Graziano of New York City. In 1989, Mead wrote his autobiography, "Blood, Sweat and Cheers: The Pete Mead Story", a collector's item that can sell for as much as $135. He was inducted in 1993 into the Ohio Boxing Hall of Fame.
Document 14: Live at Leeds: Live at Leeds is the first live album by the English rock band The Who. It was recorded at the University Refectory, University of Leeds on 14 February 1970, and is the only live album that was released while the group were still actively recording and performing with their best known line - up of Roger Daltrey, Pete Townshend, John Entwistle and Keith Moon. Initially released in the United States on 16 May, by Decca and MCA and the United Kingdom on 23 May, by Track and Polydor, the album has been reissued on several occasions and in several different formats. Since its release, Live at Leeds has been cited by several music critics as the best live rock recording of all time.
Document 15: The History of Eric Clapton: The History of Eric Clapton is a compilation double LP, released in 1972 by Polydor Records in the United Kingdom, and Atco Records in the United States. It features Eric Clapton performing in various bands between 1964 and 1970, including The Yardbirds, Cream, Blind Faith and Derek and the Dominos.
ground_truth: Fleetwood Mac
sub_queries: Richard Pitman >> employer Answer: BBC
Live at the BBC >> performer Answer: Fleetwood Mac