Official Release #17 Originally Released: September 1973 Produced, arranged & conducted by: FZ The Mothers: FZ: guitar & vocals Ralph Humphrey: drums Sal Marquez: trumpet & vocals George Duke: keyboards & synthesizer Tom Fowler: bass Bruce Fowler: trombone Ruth Underwood: marimba, vibes & percussion Ian Underwood: flute, clarinet, alto & tenor sax Jean-Luc Ponty: violin & baritone violin