Question: Who sings Money by the performer of Matilda Mother?

full_context: Document 1: Atom Heart Mother: Atom Heart Mother is the fifth studio album by the English progressive rock band Pink Floyd. It was released by Harvest on 2 October 1970 in the UK, and by Capitol on 10 October 1970 in the US. It was recorded at Abbey Road Studios in London, England, and was the band's first album to reach number 1 in the UK, while it reached number 55 in the US, eventually going gold there. A remastered CD was released in 1994 in the UK and the United States, and again in 2011. Ron Geesin, who had already influenced and collaborated with Roger Waters, contributed to the title track and received a then-rare outside songwriting credit.
Document 2: Money (Pink Floyd song): David Gilmour -- lead vocals, electric guitars Roger Waters -- bass guitar, tape effects Richard Wright -- Wurlitzer electric piano (with wah - wah pedal) Nick Mason -- drums, tape effects
Document 3: Money (Pink Floyd song): "Money" is a song by the English progressive rock band Pink Floyd from their 1973 album "The Dark Side of the Moon". Written by Roger Waters, it opened side two of the LP record.
Document 4: Mother (John Lennon song): "Mother" is a song by English musician John Lennon, first released on his 1970 album "John Lennon/Plastic Ono Band". An edited version of the song was issued as a single in the United States on Apple Records, on 28 December 1970. The single edit runs 1:41 shorter than the album due to removing the tolling bells that start the song and a quicker fade-out. The B-side features "Why" by Yoko Ono. The song peaked in the United States at number 19 on the "Cashbox" Top 100 and number 43 on the "Billboard" Hot 100.
Document 5: Matilda Mother: "Matilda Mother" is a song by British band Pink Floyd, featured on their 1967 debut album, "The Piper at the Gates of Dawn". Written by Syd Barrett, it is sung mostly by Richard Wright with Barrett joining in on choruses and singing the whole last verse. It was the first song recorded for the album.
Document 6: Welcome to the Machine: "Welcome to the Machine" is the second song on Pink Floyd's 1975 album "Wish You Were Here". It features heavily processed synthesizers and acoustic guitars, as well as a wide range of tape effects. Both the music and the lyrics were written by bassist Roger Waters.
Document 7: The Dark Side of the Moon: Returning from the US in January 1973, they recorded "Brain Damage", "Eclipse", "Any Colour You Like" and "On the Run", while fine-tuning the work they had already laid down in the previous sessions.  A foursome of female vocalists was assembled to sing on "Brain Damage", "Eclipse" and "Time", and saxophonist Dick Parry was booked to play on "Us and Them" and "Money".  With director Adrian Maben, the band also filmed studio footage for Pink Floyd: Live at Pompeii. Once the recording sessions were complete, the band began a tour of Europe.
Document 8: Speak to Me: "Speak to Me" is the first track on British progressive rock band Pink Floyd's 1973 album, "The Dark Side of the Moon", on which it forms an overture. Nick Mason receives a rare solo writing credit for the track, though recollections differ as to the reasons for this. Mason states that he created the track himself, whereas Richard Wright and Roger Waters stated the credit was a "gift" to Mason to give him some publishing income (subsequently regretted by the latter, following his acrimonious departure from the band). A live version is included on "Pulse".
Document 9: See Emily Play: "See Emily Play" is a song by English rock band Pink Floyd, released as their second single in June 1967. Written by original frontman Syd Barrett and recorded on 23 May 1967, it featured "The Scarecrow" as its B-side. It was released as a non-album single, but appeared as the opening track of the American edition of their debut album "The Piper at the Gates of Dawn" (1967).
Document 10: The Piper at the Gates of Dawn: The Piper at the Gates of Dawn is the debut studio album by the English rock band Pink Floyd, and the only one made under founding member Syd Barrett's leadership. The album, named after the title of chapter seven of Kenneth Grahame's "The Wind in the Willows" and featuring a kaleidoscopic cover photo of the band taken by Vic Singh, was recorded from February to May 1967 and released on 4 August 1967. It was produced by Beatles engineer Norman Smith and released in 1967 by EMI Columbia in the United Kingdom and Tower in the United States, in August and October respectively. Two of the album's songs, "Astronomy Domine" and "Interstellar Overdrive", became long-term mainstays of the band's live set list, while other songs were performed live only a handful of times.
Document 11: No More Lonely Nights: Paul McCartney -- lead vocal, piano Linda McCartney -- backing vocal, keyboards Eric Stewart -- backing vocal David Gilmour -- guitar solo Herbie Flowers -- bass Anne Dudley -- synthesiser Stuart Elliott -- drums
Document 12: The Great Gig in the Sky: ``The Great Gig in the Sky ''is the fifth track on The Dark Side of the Moon, the 1973 album by the English progressive rock band Pink Floyd. The song features music by Richard Wright and non-lexical vocals by Clare Torry.
Document 13: I Am the Walrus: John Lennon -- lead vocals, electric piano, Mellotron Paul McCartney -- bass guitar, tambourine George Harrison -- electric guitar Ringo Starr -- drums Orchestrated, directed and produced by George Martin Session musicians -- strings, brass, and woodwinds Mike Sammes singers -- backing vocals Ray Thomas -- backing vocals Mike Pinder -- backing vocals Engineered by Geoff Emerick and Ken Scott Mixed by Geoff Emerick and John Lennon
Document 14: Wish You Were Here (Pink Floyd song): ``Wish You Were Here ''is the title track on Pink Floyd's 1975 album Wish You Were Here. Like most of the album, it refers to former Pink Floyd member Syd Barrett and his breakdown. David Gilmour and Roger Waters collaborated to write the music, and Gilmour sang the lead vocal.
Document 15: Roger Waters discography: Roger Waterss primary instrument is the electric bass guitar. He briefly played a Höfner bass but replaced it with a Rickenbacker RM-1999/4001S, until around 1970 when he switched to Fender Precision basses. He often plays bass using a pick but is also known to play fingerstyle. Not only a bassist and vocalist, Waters has experimented with the EMS Synthi A and VCS 3 synthesisers and has played electric rhythm and acoustic guitars in recordings and in concert. Throughout his career he has used Selmer, WEM, Hiwatt and Ashdown amplifiers, also employing delay, tremolo, chorus, panning and phaser effects in his music.
ground_truth: David Gilmour
sub_queries: Matilda Mother >> performer Answer: Pink Floyd
who does the vocals on money by Pink Floyd Answer: David Gilmour