Sleep Dirt Rock 1979.10.19 CD, Cassette Studio ASIN: B0000009SU Frank Zappa George Duke - Keyboards, Vocals; Bruce Fowler - Brass; Chester Thompson - Drums; Terry Bozzio - Drums; Napoleon Murphy Brock - Saxophone; Thana Harris - Vocals; Patrick O'Hearn - Bass; Dave Parlato - Bass; Ruth Underwood - Percussion, Keyboards; James Youman - Bass Time 38:39 <br> Frank Zappa - Guitar, Percussion, Arranger, Keyboards, Vocals, Producer