Personnel: Frank Zappa (vocals, arranger, conductor, acoustic & electric guitars, harmonica, bass, cymbals, tambourine); Napoleon Murphy Brock (vocals, flute, tenor saxophone); Dale Bozzio, Ike Willis, Howard Kaylan, Mike Volman (vocals); Jeff Simmons, Adrian Belew (guitar, background vocals); Tony Duran, Elliot Ingber (guitar); Jean Luc Ponty (violin); Ian Underwood (flute, clarinet, alto & tenor saxophones, keyboards, background vocals); George Duke (keyboards, synthesizer, background vocals); Peter Wolf (keyboards); Don Preston (Mini-Moog synthesizer); Patrick O'Hearn (bass, background vocals); Jack Bruce (bass); Chester Thompson, Vinnie Colaiuta, Aynsley Dunbar (drums); Ruth Underwood (percussion); Kerry McNabb (background vocals).Producers: Frank Zappa, Tom Wilson.Compilation producer: Jon Fishman.Includes liner notes by Jonathan Fishman.This is part of Rykodisc "Zappa Picks" series.