Ruth Underwood

Acting·May 23, 1946·Ithaca, New York, United States

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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.

Film	Credit
Frank Zappa: Cheaper Than Cheep2025 · Self (percussion)	Self (percussion)
Classic Albums: Frank Zappa & The Mothers Of Invention - Freak Out!2021 · Self	Self
Zappa2020 · Self - Played with Zappa 1967-1976	Self - Played with Zappa 1967-1976
Eat That Question: Frank Zappa in His Own Words2016 · Self (archive footage)	Self (archive footage)
Frank Zappa & The Mothers: Roxy: The Movie2015 · Herself	Herself
Cheepnis2014 · Herself	Herself
Frank Zappa: A Token Of His Extreme2013 · Herself	Herself
TThe Drummers of Frank Zappa Roundtable Discussion and Performance2010 · Self	Self
Frank Zappa: The Broadcast Archives2008 · Self	Self
Classic Albums: Frank Zappa - Apostrophe (') Over-Nite Sensation2007 · Self	Self
Frank Zappa: Roxy, 19732007 · Actor	Actor
Frank Zappa: A Token of His Extreme2005 · Herself	Herself
AAn American Dissident: un tributo a Frank Zappa1994 · Self (archive footage)	Self (archive footage)
The True Story of Frank Zappa's 200 Motels1988 · Self (archive footage)	Self (archive footage)
Video from Hell1987 · Self	Self
Frank Zappa: The Dub Room Special!1982 · Self	Self
Frank Zappa: Opopoppa Stockholm, Sweden1973 · Actor	Actor
200 Motels1971 · Fake Drummer	Fake Drummer