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. His playing style combined a highly percussive attack with abrupt, dramatic use of switched key releases, silences, and hesitations.

His distinctive look included suits, hats, and sunglasses. He also had an idiosyncratic habit during performances; while other musicians continued playing, Monk would stop, stand up, and dance for a few moments before returning to the piano.

Monk is one of five jazz musicians to have been featured on the cover of Time magazine, along with Louis Armstrong, Dave Brubeck, Duke Ellington, and Wynton Marsalis.