CD, these were combined as the first tracks on each side, as displayed below. Personnel Musicians Frank Zappa – lead guitar, vocals, producer Jeff Simmons – rhythm guitar, vocals Napoleon Murphy Brock – flute, tenor saxophone, vocals George Duke – keyboards, synthesizer, vocals Don Preston – synthesizer Bruce Fowler – trombone, dancer Walt Fowler – trumpet, bass trumpet Tom Fowler – bass guitar Ralph Humphrey – drums Chester Thompson – drums Ruth Underwood – percussion Robert "Frog" Camarena – backing vocals on "Cheepnis" Debbie Wilson – backing vocals on "Cheepnis" Linda "Lynn" Sims – backing vocals on "Cheepnis" Ruben Ladron de Guevara – backing vocals on "Cheepnis" Production Stephen Marcussen – digital remastering Kerry McNabb – engineer, remixing Wally Heider – engineer Coy Featherston, Steve Magedoff – photography Cal Schenkel – graphic design, design Charts Album - Billboard (United States) References External links Lyrics and information Release details 1974 live albums DiscReet Records albums Frank Zappa live albums Albums recorded at the Roxy Theatre Albums recorded at Bolic Sound