Thelonious Monk

Thelonious Sphere Monk ( October 10, 1917 – February 17, 1982) was an American jazz pianist and composer. He had a unique improvisational style and made numerous contributions to the standard jazz repertoire, including "'Round Midnight", "Blue Monk", "Straight, No Chaser", "Ruby, My Dear", "In Walked Bud", and "Well, You Needn't". As of 2009, Monk was the second-most-recorded jazz composer in history, after Duke Ellington. Monk's compositions and improvisations feature dissonances and angular melodies, often using flat ninths, flat fifths, unexpected chromatic notes, low bass notes and stride, and fast whole tone runs.