The Yamaha Quartet was an American jazz ensemble established by renowned composer, band leader, and keyboardist Clare Fischer (1928—2012) in the early 1970s to promote and endorse the iconic Yamaha EX-42 electronic organ. The quartet featured a few of Fischer's long-time collaborators and members of his numerous bands. Before the Quartet's album, Clare Fischer used EX-42 on the 1972 [m=145200] LP by Nancy Sinatra and Lee Hazlewood.

Yamaha Corporation heavily invested in promoting the EX-42 electronic organ, employing Koichi Oki to produce a few albums, including Yamaha Superstar! (1971) and EX-42 V.S. ARP Synthesizer (72) with Shiro Michi, a sort of a battle between two synthesizer giants. Among Western musicians who recorded albums exclusively or predominantly on EX-42 are Australian Eric Smith In Concert On The Yamaha EX-42 (1971) and Claude Dupras from Canada, who released [m=997900] in 1975.

The Yamaha Quartet
Clare Fischer — Yamaha EX-42 electronic organ
Gary Foster — alto & soprano saxophones
Andrew Simpkins — bass
Larry Bunker — drums