Simmons provided bass, guitar, vocals and harmonica for Mothers of Invention during 1970 and 1971. He left the Mothers in early 1971 just prior to the filming of 200 Motels. Simmons later returned to the Mothers occasionally during the period of 1972 to 1974. Zappa and Mothers albums he appeared on include Chunga's Revenge, Waka/Jawaka and Roxy & Elsewhere. In later years Zappa released a number of archival recordings that feature Simmons including You Can't Do That on Stage Anymore, Vol. 1, You Can't Do That on Stage Anymore, Vol. 6, and Playground Psychotics. Simmons also appears in the Zappa movie The True Story of Frank Zappa's 200 Motels. Numerous Zappa bootleg recordings from the same era also feature Simmons. Simmons's music career began in Seattle. In 1967 he became a member of the local group Blues Interchange which soon changed its name to Easy Chair. The group self-financed their only recording, released by the regional Vanco label in 1968. The 12" one-sided, three-song album sold well in the independent record shops along University Way NE in Seattle's University District. Only about 1000 copies of locally produced Easy Chair record were pressed. It is now a highly valued collectible. Easy Chair was then booked as the opening act for an August 24, 1968 concert by The Mothers of Invention at the Seattle Center Arena. During the sound check Easy Chair was discovered by Zappa, who recognized that the group's style was compatible with his own. The group followed Zappa back to Los Angeles. In December 1968 Easy Chair was a supporting act for Zappa and The Mothers for 2 concerts at the Shrine Auditorium. The concerts were organized to showcase Zappa's two new record labels, Bizarre Records and Straight Records. Other artists appearing at the shows included Alice Cooper, The GTOs and Wild Man Fischer, but Easy Chair never had the opportunity to make a record in Los Angeles. After disagreements and unexpected delays the group broke up before any recordings were made. Simmons stayed in Los Angeles and completed two solo albums for Straight. With Randy Sterling he co-composed the soundtrack for the biker film Naked Angels. His second album Lucille Has Messed My Mind Up, featured Zappa as producer. Zappa wrote two songs and played lead guitar under the pseudonym La Marr Bruister. The recording engineer was Chris Huston, who also worked on Led Zeppelin II at about the same time. Lucille was voted the 2nd best album on Straight Records by Mojo Magazine. Both albums were re-issued on CD in 2007 by World In Sound Records. Simmons is one of only a handful of musicians to share songwriting credits with Zappa. The collaboration Wonderful Wino appears on Lucille Has Messed My Mind Up and also on Zappa's 1976 album Zoot Allures. Simmons is also listed as co-writer on Dummy Up from Zappa's 1974 album Roxy & Elsewhere. The title song of the album Lucille Has Messed My Mind Up was also re-recorded in a completely different arrangement on Zappa's 1979 album Joe's Garage. During a 1982 guest DJ spot on UK's BBC Radio 1 Zappa played some of his favorite recordings including Simmons' song I'm In The Music Business. Simmons continued to play music with various groups in the Seattle area during the 1970s and 1980s. He appeared in the 1988 movie Rock and Roll Mobster Girls which was produced on video tape in Seattle during the very early stages of the Grunge music scene. Jeff Simmons' most recent work is Blue Universe.
