Prelude To The Afternoon Of A Sexually Aroused Gas Mask Frank zappa (lead guitar) Ian underwood (alto saxophone) Bunk gardner (tenor saxophone) Motorhead sherwood (baritone saxophone, snorks) Buzz gardner (trumpet, flugel horn) Roy estrada (bass, vocals) Jimmy carl black (drums) Arthur tripp (drums) Don preston (piano, organ, electronic effects) Don 'sugar cane' harris (electric violin) Lowell george (rhythm guitar, vocals)