Official Release #13
Originally Released: October 1971
Produced by Frank Zappa

The Mothers on this particular occasion:

FZ: guitar & bass
Mark Volman: vocals & special material
Howrd Kaylan: vocals & special material
Ian Underwood: keyboards & winds
Aynsley Dunbar: drums
George Duke: keyboards & trombone
Martin Lickert: bass
Jimmy Carl Black: vocal on “Lonesome Cowboy Burt”
Ruth Underwood: orchestra drum set
Jim Pons: voice of the “Bad Conscience”

The Top Score Singers conducted by: David Van Asch
Soprano: Phyllis Bryn-Julson
Classical Guitar Ensemble supervised by: John Williams
Narrated by: Theodore Bikel

The Royal Philharmonic Orchestra conducted by: Elgar Howarth

Pinewood Studios, London, UK
January 28-February 5, 1971

Overdubs at Whitney Studios, L.A.
Summer 1971

Live recording facilities: The Mobile Rolling Stones
Live recording engineer: Bob Auger
Overdub & re-mix engineer: Barry Keene
Reduction facilities: Whitney Studios
Road manager: Dick Barber
Technicians: Paul Hoff & Dave O'Neil

Album package & book design: Cal Schenkel
Cover/poster design & illustration: Dave McMacken