Charles Mingus Jr. (April 22, 1922 – January 5, 1979) was an American jazz upright bassist, composer, bandleader, pianist, and author. A major proponent of collective improvisation, he is considered one of the greatest jazz musicians and composers in history, with a career spanning three decades and collaborations with other jazz greats such as Duke Ellington, Charlie Parker, Max Roach, and Eric Dolphy. Mingus's work ranged from advanced bebop and avant-garde jazz with small and midsize ensembles to pioneering the post-bop style on seminal recordings like Pithecanthropus Erectus (1956) and Mingus Ah Um (1959) and progressive big band experiments such as The Black Saint and the Sinner Lady (1963). Wikipedia
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