It is not entirely clear wether the line-up given below is complete - did my best to confirm it. However the music itself might let you forget such minor quibbles.
MASAHIKO SATOH AND THE SOUNDBREAKERS "AMALGAMATION (KOKOTSU NO SHOWA GENROKU)"
Amalgamation Part 1 (15:50)
Masahiko Satoh, keyboards, organ, percussion
D.D. Dickson, trombone
Jochen Staudt, bass trombone
Jackie Heimann, trumpet
Peter Davis, trumpet
Shungo sawada, acoustic guitar
Kimio Mizutani, electric guitar
Hiro Yanakida, hammond organ
Masaoki Terakawa, electric bass
Louis Haynes, drums
Wehnne Strings Consort
Daniel Lehmann, conductor (strings)
Amalgamation Part 2 (21:18)
Mototeru Takagi, tenor saxophone, soprano saxophone, bass clarinet
Masahiko Satoh, hammond organ, percussion
Yoshisaburo Toyozumi, drums, percussion
Hideaki Sakurai, percussion, voice
Kayoko Ishu, voice (scat)
Part 1 recorded August 17, 1971 - 13:00~19:00 at Toshiba Records 1st studio.
Part 2 recorded August 22, 1971 - 13:00~19:00 at Toshiba Records 1st studio.
Liberty/Toshiba LTP9018 (this version from Phoenix Records ASHCD3040)