Question: What musical ensemble released a live album recorded at the broadcasting studios of the network that distributed Vision On?

full_context: Document 1: 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 2: Plymouth: Antarctic explorers Robert Falcon Scott and Frank Bickerton both lived in the city. Artists include Beryl Cook whose paintings depict the culture of Plymouth and Robert Lenkiewicz, whose paintings investigated themes of vagrancy, sexual behaviour and suicide, lived in the city from the 1960s until his death in 2002. Illustrator and creator of children's series Mr Benn and King Rollo, David McKee, was born and brought up in South Devon and trained at Plymouth College of Art. Jazz musician John Surman, born in nearby Tavistock, has close connections to the area, evidenced by his 2012 album Saltash Bells. The avant garde prepared guitarist Keith Rowe was born in the city before establishing the jazz free improvisation band AMM in London in 1965 and MIMEO in 1997. The musician and film director Cosmo Jarvis has lived in several towns in South Devon and has filmed videos in and around Plymouth. In addition, actors Sir Donald Sinden and Judi Trott. George Passmore of Turner Prize winning duo Gilbert and George was born in the city, as was Labour politician Michael Foot whose family reside at nearby Trematon Castle.
Document 3: 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 This compilation superseded the earlier one-disc set issued on the Strange Fruit label in 1997 that due to rights issues was withdrawn on the day of release thereby creating a highly collectable disc up until the release of this comprehensive set.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 4: 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 5: 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 6: Vision On: "Vision On" was conceived and developed by BBC producers Ursula Eason and Patrick Dowling to replace a monthly series "For Deaf Children" (1952–64), a programme paced slowly enough for children to read captions and subtitles. It was noted in surveys that a favourite for deaf children was "Top of the Pops", due to its lively and fast-moving format and that even the profoundly deaf could still enjoy the music's lower frequency notes.
Document 7: 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 8: Julian Colbeck: Julian Colbeck (born 1952) is current CEO of Keyfax NewMedia and a former professional keyboard player of over 25 years, author of several music-related books and guides, the creator of Twiddly.Bits MIDI loops, the concept designer for the PhatBoy MIDI controller, and producer of several music technology DVDs and websites. He has played/collaborated with Greep, The New Seekers, Charlie, John Miles, Yes offshoot Anderson Bruford Wakeman Howe, and Genesis guitarist Steve Hackett. He also worked as a session player on numerous recordings, including the debut Vitamin Z album, produced by Alan Parsons, with whom he would later collaborate on the 2009 DVD set, "Alan Parsons' The Art & Science of Sound Recording".
Document 9: BBC Television: The BBC Television department headed by Jana Bennett was absorbed into a new, much larger group; BBC Vision, in late 2006. The new group was part of larger restructuring within the BBC with the onset of new media outlets and technology.
Document 10: Gilbert Seldes: Gilbert Vivian Seldes (; January 3, 1893 – September 29, 1970) was an American writer and cultural critic. Seldes served as the editor and drama critic of the seminal modernist magazine "The Dial" and hosted the NBC television program "The Subject is Jazz" (1958). He also wrote for other magazines and newspapers like "Vanity Fair" and the "Saturday Evening Post". He was most interested in American popular culture and cultural history. He wrote and adapted for Broadway, including "Lysistrata" and "A Midsummer Night's Dream" in the 1930s. Later, he made films, wrote radio scripts and became the first director of television for CBS News and the founding dean of the Annenberg School for Communication at the University of Pennsylvania.
Document 11: BBC Television: As a division within the BBC, Television was formerly known as BBC Vision for a few years in the early 21st century, until its name reverted to Television in 2013. It is responsible for the commissioning, producing, scheduling and broadcasting of all programming on the BBC's television channels, and is led by Danny Cohen.
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: Byline (TV series): Your Kaiser Dealer Presents Kaiser-Frazer "Adventures In Mystery" Starring Betty Furness in "Byline" is a brief series of live mysteries that aired from November 4 through December 9, 1951, on ABC television.
Document 14: 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 15: Pat Keysell: Pat Keysell (7 June 1926 – 31 October 2009) was a presenter of the BBC television series "Vision On" which ran from 1964 to 1976. She was also a mime artist and administrator.
ground_truth: Fleetwood Mac
sub_queries: Vision On >> distributed by Answer: BBC
Live at the BBC >> performer Answer: Fleetwood Mac