1) In 1964, John Coltrane released A Love Supreme, considered his masterpiece, as he became a prominent figure in free jazz. 2) In 1965, Muhal Richard Abrams founded the Association for the Advancement of Creative Musicians to free musicians from commercial responsibilities, including the Art Ensemble of Chicago. 3) Miles Davis continued recording influential albums with rotating musicians from 1964-1968 that developed ideas from bebop, cool, hard bop, and free jazz periods.