A1 For Calvin (And His Next Two Hitch-Hikers) 7:15
A2 The Grand Wazoo 13:24
B1 Cletus Awreetus - Awrightus 2:55
B2 Eat That Question 6:41
B3 Blessed Relief 8:00
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Bass – Erroneous
Brass – Ernie Tack (tracks: A1, A2), Malcolm McNabb (tracks: A1, A2), Sal Marquez
Drums – Aynsley Dunbar
Gong – Lee Clement (tracks: B2)
Guitar – Tony Duran (tracks: A1, A2, B3)
Guitar, Producer, Composed By, Arranged By – Frank Zappa
Keyboards – George Duke (tracks: B1 to B3)
Percussion – Alan Estes (tracks: A1, A2), Bob Zimmitti (tracks: A1, A2), Frank Zappa (tracks: B2)
Saxophone – Ernie Watts (tracks: B1)
Synthesizer [Mini Moog] – Don Preston (tracks: A1, A2)
Trombone – Bill Byers* (tracks: A1, A2), Ken Shroyer (tracks: B1)
Vocals – Chunky (tracks: B1), Frank Zappa (tracks: B1), George Duke (tracks: B1), Janet Neville-Ferguson* (tracks: A1, A2), Sal Marquez (tracks: A1, A2)
Woodwind – Tony "Bat Man" Ortega (tracks: A1, A2), Earl Dumler (tracks: A1, A2), Fred Jackson (tracks: A1, A2), Joanne Caldwell McNabb (tracks: A1, A2), Joel Peskin (tracks: B2, B3), Johnny Rotella (tracks: A1, A2), Mike Altschul