Ruth Underwood

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Acting

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.

Filmography

• Frank Zappa: Cheaper Than Cheep (2025)
• Classic Albums: Frank Zappa & The Mothers Of Invention - Freak Out! (2021)
• Zappa (2020)
• Eat That Question: Frank Zappa in His Own Words (2016)
• Frank Zappa & The Mothers: Roxy: The Movie (2015)
• Cheepnis (2014)
• Frank Zappa: A Token Of His Extreme (2013)
• The Drummers of Frank Zappa Roundtable Discussion and Performance (2010)
• Frank Zappa: The Broadcast Archives (2008)
• Classic Albums: Frank Zappa - Apostrophe (') Over-Nite Sensation (2007)
• Frank Zappa: Roxy, 1973 (2007)
• Frank Zappa: A Token of His Extreme (2005)
• An American Dissident: un tributo a Frank Zappa (1994)
• The True Story of Frank Zappa's 200 Motels (1988)
• Video from Hell (1987)
• Frank Zappa: The Dub Room Special! (1982)
• Frank Zappa: Opopoppa Stockholm, Sweden (1973)
• 200 Motels (1971)