Ruth Underwood
Biography
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.
Acting (16 movies)

200 Motels
1971

Frank Zappa: The Dub Room Special!
1982

Cheepnis
2014

The True Story of Frank Zappa's 200 Motels
1988

Video from Hell
1987

Eat That Question: Frank Zappa in His Own Words
2016

Zappa
2020

Classic Albums: Frank Zappa & The Mothers Of Invention - Freak Out!
2021

Frank Zappa: The Broadcast Archives
2008

Classic Albums: Frank Zappa - Apostrophe (') Over-Nite Sensation
2007

Frank Zappa: A Token of His Extreme
2005

Frank Zappa: A Token Of His Extreme
2013

Frank Zappa & The Mothers: Roxy: The Movie
2015

Frank Zappa: Opopoppa Stockholm, Sweden
1973

Frank Zappa: Roxy, 1973
2007

Frank Zappa: Cheaper Than Cheep
2025
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