Question: In what year did the performers of Seventh Brings Return: A Tribute to Syd Barrett form?

full_context: Document 1: Em Toda Parte: Em Toda Parte (Portuguese for "All Around") is the second studio album by Brazilian psychedelic rock band Violeta de Outono, released in June 18, 1989 by Ariola Records. It was also their last release before they entered a hiatus period in 1993 that would last until 1995. Beginning with this album, Violeta de Outono abandons their post-punk influences and gradually shift towards a more progressive-influenced sonority.
Document 2: 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 3: Vocolot: Vocolot began in 1988, when singer-songwriter Linda Hirschhorn informally assembled a group of musicians to record some of the songs she had written for four- and five-part vocal harmonies. When they had finished recording those, for the "Gather Round" album, she asked the singers to join her in an ongoing group. The founding members were Rosalind Glazer, Max Ventura, Tay Holden and Linda Hirschhorn.
Document 4: The Dark Side of the Moon: The Dark Side of the Moon is the eighth album by English rock band Pink Floyd, released on 1 March 1973 by Harvest Records. The album built on ideas explored in earlier recordings and live shows, but lacks the extended instrumental excursions following the departure of founding member and principal contributor, Syd Barrett, in 1968, that characterised their earlier work. It thematically explores conflict, greed, the passage of time, and mental illness, the latter partly inspired by Barrett's deteriorating mental state.
Document 5: Eclipse (Violeta de Outono album): Eclipse is a live album by Brazilian psychedelic rock band Violeta de Outono, released in 1995 by Argentine independent label Record Runner. It was recorded during the band's performance at the SESC Pompeia in São Paulo, in 1986.
Document 6: Max Barrett: Arthur Max Barrett, MD (28 July 1909 – 11 December 1961), also known as Dr. A. M. Barrett, was a university morbid anatomist and histologist at the University of Cambridge, and an honorary consulting pathologist to the United Cambridge Hospitals and to the East Anglian Regional Hospital Board. He wrote numerous works, often cited in medical literature. The Barrett Room at Addenbrooke's Hospital is named in his honour. He was the father of Syd Barrett, a founder member of the band Pink Floyd.
Document 7: Ao Vivo no Theatro Municipal: Violeta de Outono – Ao Vivo no Theatro Municipal, São Paulo, 03.05.2009 is a live video by Brazilian psychedelic rock band Violeta de Outono, released by Voiceprint Records on July 25, 2011. As the name implies, it was recorded during a show at the Theatro Municipal in São Paulo on May 3, 2009, in which they performed their 1987 debut album in its entirety, as well as some other tracks.
Document 8: Reflexos da Noite: Reflexos da Noite (Portuguese for "Reflections of the Night") is an EP, and the first official release by the Brazilian psychedelic rock band Violeta de Outono. It came out in September 12, 1986 by now-defunct independent label Wop-Bop Records.
Document 9: Ilhas (album): Ilhas (Portuguese for "Islands") is the fourth studio album by Brazilian psychedelic rock band Violeta de Outono, released on May 9, 2005 by Voiceprint Records. It was the last album of the band to feature the original line-up of Fabio Golfetti, Cláudio Souza and Angelo Pastorello.
Document 10: 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 11: Seventh Brings Return: A Tribute to Syd Barrett: Seventh Brings Return: A Tribute to Syd Barrett is a live video by Brazilian psychedelic rock band Violeta de Outono, released by Voiceprint Records in 2009. It was recorded during a show at the Teatro Popular do SESI on July 17, 2006, in which they covered numerous Pink Floyd songs as a tribute to their former lead vocalist and founding member Syd Barrett, as well as a song of his 1970 solo album "The Madcap Laughs".
Document 12: Sibylle Baier: The songs that made up her album "Colour Green" were home reel-to-reel tape recordings Baier had made in Germany between 1970 and 1973. Some 30 years later, her son Robby compiled a CD from these recordings to give to family members as presents. He also gave a copy to Dinosaur Jr's J Mascis, who in turn passed it along to the Orange Twin label. Orange Twin released the album in February 2006.
Document 13: 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 14: Violeta de Outono: Fabio Golfetti founded Violeta de Outono in 1985 alongside Cláudio Souza; both had just parted ways with pioneering New Romantic band Zero. They would later be joined by Angelo Pastorello, and with this line-up they released a demo tape, "Memories", in the same year. The tape got the attention of independent record label Wop-Bop Records, that released their first recording, the extended play "Reflexos da Noite", in 1986.
Document 15: Live at Rio ArtRock Festival '97: Live at Rio ArtRock Festival '97 is a live album by Brazilian psychedelic rock band Violeta de Outono, released on May 9, 2000 by Rock Symphony. It was recorded during the band's performance at the in Rio de Janeiro, in 1997.
ground_truth: 1985
sub_queries: Seventh Brings Return: A Tribute to Syd Barrett >> performer Answer: Violeta de Outono
In what year did Violeta de Outono first exist? Answer: 1985