Complex sentence: He also worked professionally as a player of the trumpet and double bass, performing music of many kinds, and regularly worked as a jazz musician until 1953, among others in the company of Coleman Hawkins and Django Reinhardt.
Split into simpler sentences: He also worked professionally as a player of the trumpet and double bass, performing music of many kinds, and regularly worked as a jazz musician until 1953. He played the double bass on occasion in the company of Coleman Hawkins and Django Reinhardt.