Charles Mingus - Mingus Ah UmAmerican jazz musician, composer, bandleader and civil rights activist, born April 22, 1922 in Nogales, Arizona, USA and died January 5, 1979 in Cuernavaca, Mexico of Lou Gehrig's disease. A forerunner in double bass technique, he also pioneered in overdubbing and in cutting up and reassembling tapes of different takes in the studio to achieve the best possible version to put on record. He also authored an autobiographical novel called "Beneath The