alto saxophone [(prepared) alto saxophone], clarinet Gilius van Bergeijk
alto saxophone, baritone saxophone Peter Brötzmann
alto saxophone, soprano saxophone John Tchicai
alto saxophone, soprano saxophone, bagpipes Peter Bennink
cello Tristan Honsinger
contrabass Maarten Altena
drums, harmonica Han Bennink
piano Misha Mengelberg
synthesizer Michel Waisvisz
trombone, trumpet Bert Koppelaar
Recorded At Moers Festival
recorded at Moers Festival, 7 June 1976

According to the Moers festival's website the date of recording is June 5, 1976.