Randolph Denard Ornette Coleman (March 9, 1930 – June 11, 2015) was an American jazz saxophonist, violinist, trumpeter and composer. He was one of the major innovators of the free jazz movement of the 1960s, a term he invented with the name of an album. Coleman’s timbre was easily recognized: his keening, crying sound drew heavily on blues music. His album Sound Grammar received the 2007 Pulitzer Prize for music.
Other Jazz musicians called him crazy , here is one of his songs , i know Free Jazz ist not erverybody´s darling ^^