This postmodern saxophonist was among the early members of the association for the advancement of creative musicians; he has been as far ranging as anyone in his exploration of musical sound; his 1978 duo album with max roach, birth and rebirth, is just one example:

The correct answer is Anthony Braxton. While Braxton is most often categorized as a jazz musician, he has experimented with music so much that he refers to his style as "creative music," without truly putting a label on it. In keeping with this theme, he has named several of his pieces as if they were diagrams (using numbers and letters) without explaining the meaning behind them.