Even avant-garde jazz needs structure. A boundless exploration of less touched musical realms still needs some foundation to stand on. Certain jazz purists don’t even consider fusion, free, or Avant-garde to be true jazz. I stand somewhere in between. The music of Miles Davis, Joe Zawinul, and Ornette Coleman is as canonical as Duke Ellington or Bing Crosby. Evolution is vital to keep music interesting, especially in the richly complex world of jazz.