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Zappa Gear on Twitter: "Frank Zappa's floor pedals used in the Roxy shows: a Boomerang wah-wah and a Mu-tron III envelope follower https://t.co/X26XJiDMb9" / Twitter
![Get a comprehensive look at Frank Zappa's guitars, amps, effects and more in a new book, Zappa Gear | Guitar World Get a comprehensive look at Frank Zappa's guitars, amps, effects and more in a new book, Zappa Gear | Guitar World](https://cdn.mos.cms.futurecdn.net/WxCKWbj2PkRVXKtB2dBRE7.jpg)
Get a comprehensive look at Frank Zappa's guitars, amps, effects and more in a new book, Zappa Gear | Guitar World
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