tracks 1 to 7 acoustic bass Peter Stock tracks 1, 2 alto saxophone Hans Schwindt tracks 1 to 7 cello Franz Volhard tracks 6, 7 cello Thomas Stöwsand tracks 1 clarinet Witold Teplitz drums Thomas Cremer tracks 4 to 7 electric guitar Johannes Krämer tenor saxophone, bass clarinet, trumpet, producer Alfred Harth tracks 4, 5 trombone Dieter Herrmann tracks 6, 7 viola Andre De Tiege Recorded At Mozartsaal, Liederhalle Stuttgart Tacks 1 + 2 recorded June 9, 1968; track 3 recorded summer 1968; track 4 recorded September 13, 1968; track 5 recorded summer 1969; tracks 6 + 7 recorded April 27, 1970.