Jazz in the post-war years: In the early 1940s, bebop-style performers began to shift jazz from danceable popular music toward a more challenging "musician's music." The most influential bebop musicians included saxophonist Charlie Parker, pianists Bud Powell and Thelonious Monk, trumpeters Dizzy Gillespie and Clifford Brown, and drummer Max Roach. Divorcing itself from dance music, bebop established itself more as an art form, thus lessening its potential popular and commercial appeal. Composer Gunther Schuller wrote, "In 1943 I heard the great Earl Hines band which had Bird in it and all those other great musicians. They were playing all the flatted
Jazz fusion fusion is a difficult genre to play. "I...picked jazz fusion because I was trying to become the ultimate technical musician—able to play anything. Jazz fusion to me is the hardest music to play. You have to be so proficient on your instrument. Playing five tempos at the same time, for instance. I wanted to try the toughest music because I knew if I could do that, I could do anything." Jazz rock fusion's technically challenging guitar solos, bass solos and odd metered, syncopated drumming started to be incorporated in the technically focused progressive metal genre in the early 1990s. Progressive