The Percy Heath reference article from the English Wikipedia on 24-Apr-2004
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Percy Heath

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Percy Heath b. April 30, 1923; Wilmington, NC Double bass player, most famous for his 40 + years with the Modern Jazz Quartet (MJQ) in which his melodic inventive and powerfull yet sensitive playing were an assett to this inovative jazz group . Mr Heath has also worked with Miles Davis ,Dizzy Gillespie Charlie Parker, and Thelonious Monk.