Question: Trey Anastasio and Glenn Bidmead, have which mutual occupation?

full_context: Document 1: Phish: Phish is an American rock band that was founded at the University of Vermont in 1983. The band is known for musical improvisation, extended jams, blending of genres, and a dedicated fan base. The current line-up—guitarist and lead vocalist Trey Anastasio, bassist and vocalist Mike Gordon, drummer and vocalist Jon Fishman, and keyboardist and vocalist Page McConnell—performed together for 15 years before going on hiatus from October 7, 2000, to December 30, 2002. They resumed touring from December 31, 2002 until August 15, 2004, when they announced that the Coventry Festival would be their last show. They reunited in March 2009 for a series of three consecutive concerts played in the Hampton Coliseum in Hampton, Virginia, and have since resumed performing regularly.
Document 2: Trey Anastasio (album): Trey Anastasio is a self-titled album by the guitarist and composer Trey Anastasio. It was released on April 30, 2002 by Elektra Records and recorded at "The Barn", his studio near Westford, Vermont. Some of the songs included are evolved, but much less experimental versions of tracks on Anastasio first solo album, "One Man's Trash", released in 1998. The tracks included were written by Anastasio, along with Tom Marshall, Tony Markellis, Russ Lawton and Scott Herman.
Document 3: Tony Markellis: Tony Markellis is a bassist and record producer from Helena, Montana, now residing in Saratoga Springs, New York. In his forty-five year career he has played blues, folk, jazz, rock and country music with musicians such as Trey Anastasio, Paul Butterfield, The Mamas & the Papas, Johnny Shines, David Bromberg, David Amram, Paul Siebel, Rosalie Sorrels, Eric Von Schmidt, Ellen McIlwaine, Mary McCaslin, Railbird and Jo Henley. Markellis was a founding member of the groundbreaking Vermont-based jazz fusion group Kilimanjaro, as well as the Unknown Blues Band featuring Big Joe Burrell. In the late 1990s, Markellis became the first member of the first solo band of Phish guitarist Trey Anastasio, forming the rhythm section with drummer Russ Lawton. Including his work with Anastasio, Markellis has appeared on over one hundred albums. In addition to tours with the Trey Anastasio Band, he is currently working with Kilimanjaro, acoustic blues power trios No Outlet and Street Corner Holler, The Burns Sisters Band, bluegrass fusion band Floodwood, acoustic Grateful Dead cover band Dead2Me, singer/songwriters Michael Jerling and Bob Warren, and occasionally with Americana band Jo Henley. On June 20, 2010 (Fathers Day), Tony was invited on stage at Saratoga Performing Arts Center (SPAC) to play bass with Phish on "Gotta Jibboo" (one of the songs he cowrote with Trey and Russ Lawton for the Trey Anastasio Band). Phish's bassist, Mike Gordon played the second guitar during the song.
Document 4: Glenn Bidmead: Glenn Keith Bidmead (born 3 February 1962) is a Sydney-based singer, songwriter, guitarist, performer and producer. With songwriting partner Steve Glover, he was a founding member of Australian rock band LemonJuice, which enjoyed several years of success in Japan and South Korea.
Document 5: Backing musicians for Trey Anastasio: Since 1998, Trey Anastasio, best known from Phish, has toured and recorded with several backup musicians, including several side-projects organized and led by the guitarist and composer. While active, his bands did not have a name. Fans commonly referred to them as Trey Anastasio Band, or TAB for short or "The Two for Five band". This group should not be confused with the current Trey Anastasio Band, which was renamed in 2006 from its original name 70 Volt Parade.
Document 6: The Sugargliders: The Sugargliders were an indie pop band from Melbourne, Australia, comprising brothers Josh and Joel Meadows and a changing lineup of other players. Between February 1989 and June 1994 they played more than 90 live shows in Australia and the UK and released ten singles and one compilation album. After disbanding The Sugargliders the Meadows brothers re-emerged in The Steinbecks.
Document 7: Benji Madden: Benjamin Levi "Benji" Madden (born Benjamin Levi Combs on March 11, 1979) is an American guitarist, vocalist, songwriter, and producer. He is the lead guitarist and backing vocalist for the band Good Charlotte, as well as pop rock collaboration The Madden Brothers. He formed both of these acts with his identical twin brother, Joel Madden. Benji is currently a coach on "The Voice Australia".
Document 8: Russ Lawton: Russ Lawton is a professional drummer from Vermont. He is best known as the drummer from the solo band of Phish guitarist Trey Anastasio. Lawton also performs with the Vermont jam band Strangefolk and The Chrome Cowboys. Lawton performed on Mike Gordon's albums "Inside In" and "The Green Sparrow".Recently, Russ sat in with the Vermont-based "Book'em Blues Band" for an evening of blues and rock on April 14, 2009 at Nectar's in Burlington, Vermont. Among those Russ has a worked with is Ish drummer Jason Osborn. Lawton recently appeared on Late Night With Jimmy Fallon with Trey Anastasio Band.
Document 9: Squeeze discography: Squeeze are a British rock band who were active from 1974 to 1982, from 1985 to 1999 and again since 2007, and were founded by Glenn Tilbrook (vocals), Chris Difford (guitar), Jools Holland (keyboards) and Paul Gunn (drums). The group have released 14 studio albums, 14 compilation albums, 4 live albums, 1 extended play and 48 singles. All of Squeeze's hits are written by Glenn Tilbrook and Chris Difford.
Document 10: Trey Anastasio: Ernest Joseph "Trey" Anastasio III ( , born September 30, 1964) is an American guitarist, composer, and vocalist noted for his work with the band Phish, and his solo career, including the Trey Anastasio Band and the orchestral "Evenings with Trey Anastasio" performed with the New York Philharmonic, the Los Angeles Philharmonic, the Atlanta Symphony Orchestra, the Baltimore Symphony, the Pittsburgh Symphony, and the Colorado Symphony.
Document 11: G3 (tour): G3 is a concert tour organized by guitarist Joe Satriani featuring him alongside two other guitarists. Since its inception in 1995, G3 has toured most years and has featured many guitarists, including Steve Vai (Satriani's former student), Eric Johnson, Kenny Wayne Shepherd, Yngwie Malmsteen, John Petrucci, Robert Fripp, Paul Gilbert, Steve Morse, Steve Lukather, Uli Jon Roth, Michael Schenker, Adrian Legg and many other special guests, including Tony MacAlpine, Johnny Hiland, Keith More, Chris Duarte, Andy Timmons, Neal Schon, Gary Hoey, Brian May, Billy Gibbons, Johnny A, George Lynch, Patrick Rondat, Guthrie Govan, Alejandro Silva, and Eric Sardinas.
Document 12: Glenn A. Baker: Glenn A. Baker (born 28 July 1952) is an Australian journalist, commentator, and broadcaster well known in Australia for his vast knowledge of Rock music. He has written books and magazine articles on rock music and travel, interviewed celebrities, managed bands such as Ol' 55 and promoted tours of international stars. In the mid-1980s, Baker took the BBC's "Rock Brain of the Universe" crown three times. Baker was the Australian editor of "Billboard" for over 20 years. He won the inaugural Australian Travel Writer of the Year award in 1995 from the Australian Society of Travel Writers, he won the award again in 2000.
Document 13: Leah Flanagan: Leah Flanagan is a singer-songwriter from Sydney, NSW. Leah has appeared on Australian TV shows Spicks & Specks and RockQuiz, has released 2 albums and toured extensively through Australia with her music and part of festival ensembles. Leah’s status as an Indigenous musician is one of pride and respect; she has helped make history with such recent essential albums as Archie Roach’s 25th anniversary reissue of Charcoal Lane and Buried Country 1.5, The Story of Aboriginal Country Music. Her latest album Saudades was recorded at the studio of Midnight Oil's Jim Moginie and mixed by Paul McKercher (You Am I, Augie March)
Document 14: Glenn Gregory: Glenn Peter Gregory (born 16 May 1958) is an English singer, songwriter, and multi-instrumentalist whose music career spans more than 30 years. He came to prominence in the early 1980s as co-founder and lead singer of the new wave and synthpop band Heaven 17, which released six singles that entered the Top 40 charts in the United Kingdom during the 1980s, and 1990s, including "Temptation", "Come Live with Me", "Crushed by the Wheels of Industry", "Sunset Now", "This Is Mine", and "(We Don't Need This) Fascist Groove Thang" .
Document 15: One Man's Trash: One Man's Trash is Trey Anastasio's first solo album apart from Phish, recorded in the Fungus Factory or in The Barn between 1997 and 1998 during breaks of touring and recording with Phish. The release includes early experimental noise explorations, some of which were reincarnated later into his second album, "Trey Anastasio", released in 2002. "One Man's Trash" was released on October 27, 1998.
ground_truth: guitarist