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quadrophonic

Frank Zappa in 1975. Photo courtesy Ryko/Doug Metzler, 1975
Articles

Zappa delighted in breaking new ground in sound

By Patrick PrinceAug 18, 2010
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Collector Resources

Unusual Pink Floyd vinyl stumps Sound Advice

By Patrick PrinceFeb 6, 2020
News

Pink Floyd's Dark Side Of The Moon quadraphonic eight-track sells for $676

By Goldmine StaffApr 23, 2006