Credits

Les McCann: Piano
Frank Zappa: Guitar, Vocals, Musical Direction, Orchestration, Arranger
Paul Butterfield: Vocals
Jimmy Carl Black: Percussion, Drums, Vocals
Carol Kaye: 12-String Guitar
Mac Rebennack: Piano
Kim Fowley: Megaphone
Kurt Reher: Cello
Ray Collins: Harmonica, Cymbals, Sound Effects, Tambourine, Vocals, Finger Cymbals, Hair Stylist
Tom Wilson: Producer
Gene Estes: Percussion
Jack Anesh: Design
Arthur Maebe: French Horn, Tuba
Emmet Sargeant: Cello
Ken Watson: Assistant Engineer
John Rotella: Clarinet, Saxophone
Neil Levang: Guitar, Assistant Engineer
Paul Bergstrom: Cello
Edwin Beach: Cello
Joseph Saxon: Cello
Elliot Ingber: Rhythm Guitar, Lead Guitar
Eugene Dinovi: Piano, Assistant Engineer
Motorhead Sherwood: Noises
Roy Estrada: Bass, Vocals
Raymond Kelley: Cello
Val Valentin: Engineer, Engineering Director
Jeannie Vassoir: Voices