NEW YORK (AP) Max Roach, the master percussionist whose rhythmic innovations and improvisations defined bebop jazz during a career marked by expectations defied and musical boundaries ignored, died Wednesday. He was 83.

Roach played on seminal recordings with Thelonius Monk, Duke Ellington and Miles Davis. Roach was elected to the Downbeat magazine Hall of Fame in 1980, and the Grammy Hall of Fame 15 years later. In 1988, he became the first jazz musician ever honored with a MacArthur Fellowship _ receiving a $372,000 "genius grant."

Roach debuted with Ellington's band as a drummer in 1940.

He collaborated with drummers from around the world, with a string quartet that featured daughter Maxine, and with rapper Fab Five Freddy.