Musicians ; "The Grand Wazoo" and "For Calvin (And His Next Two Hitch-Hikers)" • Mike Altschul -
woodwind •
Billy Byers -
trombone (including solo on "The Grand Wazoo") • Joanna Caldwell - woodwind • Earl Dumler - woodwind •
Aynsley Dunbar -
drums •
Tony Duran - guitar (including
bottleneck guitar solo on "The Grand Wazoo") • Erroneous (Alex Dmochowski) -
bass • Alan Estes -
percussion •
Fred Jackson - woodwind • Sal Marquez - vocals,
trumpet (including solo on "The Grand Wazoo") •
Malcolm McNab -
brass • Janet Neville-Ferguson – vocals • Tony "Bat Man" Ortega - woodwind •
Don Preston -
minimoog (including solo on "The Grand Wazoo") • Johnny Rotella - woodwind • Ken Shroyer - brass, "contractor and spiritual guidance" • Ernie Tack - brass • Frank Zappa - guitar (including opening solo on "The Grand Wazoo") • Bob Zimmitti - percussion ; "Cletus Awreetus-Awrightus" • Mike Altschul - woodwind • "Chunky" (Lauren Wood) - vocals •
George Duke -
keyboards, vocals • Erroneous (Alex Dmochowski) - bass • Aynsley Dunbar - drums • Sal Marquez - brass • Ken Shroyer -
trombones • Frank Zappa - vocals, guitar with: •
Ernie Watts -
C Melody Saxophone (the "Mystery Horn") solo ; "Eat That Question" • Mike Altschul - woodwind • George Duke - keyboards • Aynsley Dunbar - drums • Erroneous (Alex Dmochowski) - bass • Sal Marquez - "multiple toots" (brass) • Joel Peskin - woodwind • Frank Zappa - guitar, percussion with: • Lee Clement -
gong ; "Blessed Relief" • Mike Altschul - woodwind • George Duke - keyboards • Aynsley Dunbar - drums • Tony Duran -
rhythm guitar • Erroneous (Alex Dmochowski) - bass • Sal Marquez - brass • Joel Peskin - woodwind • Frank Zappa -
lead guitar Production • Producer:
Frank Zappa • Engineer: Kerry McNabb • Arranger: Frank Zappa • Special assistance: Paul Hof • Photography: Ed Caraeff, Tony Esparza, Barry Feinstein • Cover illustration:
Cal Schenkel • Art direction: Frank Zappa • Spiritual advisor: Kenny Shroyer • Contractor: Kenny Shroyer • Burritos: Ernie's Taco House • Pizza: two guys from Italy • Barbecue desiccated chicken: Hollywood Ranch Market == Notes ==