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The Boss DR-660 Drum Machine | Planet Botch
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File:BOSS Dr.Rhythm Section DR-5 (clip).jpg - Wikimedia Commons
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Meet Depeche Mode's first live drummer: the Boss Dr. Rhythm DR-55
Vintage Boss "Dr. Rhythm" DR-770 dedicated electronic drum machine from 1999 Stock Photo - Alamy
Boss DR770
DR-550 Dr. Rhythm - Boss DR-550 Dr. Rhythm - Audiofanzine
