Ruth Underwood
Ruth Underwood (born Ruth Komanoff; May 23, 1946) is an American musician best known for playing xylophone, marimba, vibraphone, and other percussion instruments for Frank Zappa and his band The Mothers of Invention. She played for Zappa from 1968 until his death. She married fellow Zappa musician Ian Underwood.
Known for
- Classic Albums (1997)
- Classic Albums: Frank Zappa - Apostrophe (') Over-Nite Sensation (2007)
- Zappa (2020)
- Eat That Question: Frank Zappa in His Own Words (2016)
- Classic Albums: Frank Zappa & The Mothers Of Invention - Freak Out! (2021)
- 200 Motels (1971)
- Frank Zappa: The Dub Room Special! (1982)
- Frank Zappa: The Broadcast Archives (2008)
- Frank Zappa & The Mothers: Roxy: The Movie (2015)
- Frank Zappa: A Token Of His Extreme (2013)
- Video from Hell (1987)
- The True Story of Frank Zappa's 200 Motels (1988)
- Frank Zappa: Cheaper Than Cheep (2025)
- Frank Zappa: A Token of His Extreme (2005)
- Frank Zappa: Roxy, 1973 (2007)
- Frank Zappa: Opopoppa Stockholm, Sweden (1973)
- Cheepnis (2014)