Misha Mengelberg (born June 5, 1935) is a jazz pianist and composer. He was the pianist on Eric Dolphy's last album, "Last Date" (1964). Also featuring on that record was the drummer Han Bennink, and together with Piet Noordijk they formed a quartet which had a number of different bassists. They played at the Newport Jazz Festival in 1966. In 1967 he co-founded the Instant Composers Pool, an organisation which promoted avant garde Dutch jazz performances and recordings, with Han Bennink and Willem Breuker.