 His work with Mingus is his best-known.Sy Johnson first performed with Charles Mingus at the Showplace, a jazz club on West 4th St., in the band that included Booker Ervin on tenor, Ted Curson on trumpet, Dannie Richmond on drums, and Mingus on bass, and on his first night with Mingus, Eric Dolphy performed on alto, bass clarinet and flute.The gig lasted two weeks and ended when Johnson came into work and found himself replaced by Yusef Lateef, the multi-instrumentalist.