Art Direction – Frank Zappa Bass – Erroneous Brass – Bill Byers* (tracks: 1, 2), Ernie Tack (tracks: 1, 2), Ken Shroyer* (tracks: 1, 2), Malcolm McNabb* (tracks: 1, 2), Sal Marquez (tracks: 1 to 3, 5) Brass [Multiple Toots] – Sal Marquez (tracks: 4) Brass, Trombone [Multiple] – Ken Shroyer* (tracks: 3) Contractor [And Spiritual Guidance] – Ken Shroyer* (tracks: 1, 2) Cover [Cover Illustration], Illustration [Cover Illustration] – Cal Schenkel Drums – Aynsley Dunbar Engineer – Kerry McNabb Guitar – Frank Zappa (tracks: 1 to 4), Tony Duran (tracks: 1, 2) Keyboards – George Duke (tracks: 3 to 5) Layout [Digital] – Michael Mesker Lead Guitar – Frank Zappa (tracks: 5) Mastered By – Doug Sax Mastered By [With] – Robert Hadley, Sangwook "Sunny" Nam* Percussion – Alan Estes (tracks: 1, 2), Bob Zimmitti (tracks: 1, 2), Frank Zappa (tracks: 4) Percussion, Gong – Lee Clement (tracks: 4) Photography By – Barry Feinstein, Ed Caraeff, Tony Esparza Producer, Composed By, Arranged By, Conductor – Frank Zappa Production Manager – Melanie Starks Rhythm Guitar – Tony Duran (tracks: 5) Synthesizer [Mini-moog] – Don Preston (tracks: 1, 2) Text By ["Legend"] – Frank Zappa Transferred By – Joe Travers Vocals – "Chunky"* (tracks: 3), Frank Zappa (tracks: 3), George Duke (tracks: 3), Janet Neville-Ferguson* (tracks: 1, 2), Sal Marquez (tracks: 1, 2) Woodwind – Tony "Bat Man" Ortega* (tracks: 1, 2), Earl Dumler (tracks: 1, 2), Ernie Watts (tracks: 3), Fred Jackson* (tracks: 1, 2), Joanne Caldwell* (tracks: 1, 2), Joel Peskin (tracks: 4, 5), Johnny Rotella* (tracks: 1, 2), Mike Altschul