Ornette Coleman,

Randolph Denard Ornette Coleman (March 9, 1930 – June 11, 2015)[1] was an American jazz saxophonist, trumpeter, violinist, and composer. He is best known as a principal founder of the free jazz genre, a term derived from his 1960 album Free Jazz: A Collective Improvisation. His pioneering works often abandoned the harmony-based composition, tonality, chord changes, and fixed rhythm found in earlier jazz idioms.[2] Instead, Coleman emphasized an experimental approach to improvisation rooted in ensemble playing and blues phrasing.[3] Thom Jurek of AllMusic called him "one of the most beloved and polarizing figures in jazz history," noting that while "now celebrated as a fearless innovator and a genius, he was initially regarded by peers and critics as rebellious, disruptive, and even a fraud."[3]