Ruth Underwood
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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
Credits
Zappa (2020)
as Self - Played with Zappa 1967-1976
Eat That Question: Frank Zappa in His Own Words (2016)
as Self (archive footage)
Classic Albums: Frank Zappa - Apostrophe (') Over-Nite Sensation (2007)
as Self
200 Motels (1971)
as Fake Drummer
Classic Albums: Frank Zappa & The Mothers Of Invention - Freak Out! (2021)
as Self
Frank Zappa & The Mothers: Roxy: The Movie (2015)
as Herself
The True Story of Frank Zappa's 200 Motels (1988)
as Self (archive footage)
Frank Zappa: Cheaper Than Cheep (2025)
as Self (percussion)
Frank Zappa: The Dub Room Special! (1982)
as Self
Frank Zappa: Opopoppa Stockholm, Sweden (1973)
Actor
Frank Zappa: A Token Of His Extreme (2013)
as Herself
Frank Zappa: The Broadcast Archives (2008)
as Self
An American Dissident: un tributo a Frank Zappa (1994)
as Self (archive footage)
Frank Zappa: A Token of His Extreme (2005)
as Herself
The Drummers of Frank Zappa Roundtable Discussion and Performance (2010)
as Self
Frank Zappa: Roxy, 1973 (2007)
Actor
Video from Hell (1987)
as Self
Cheepnis (2014)
as Herself