George Duke, the Grammy-winning jazz keyboardist and producer whose sound infused acoustic jazz, electronic jazz, funk, R&B and soul in a 40-year-plus career, has died. He was 67.

A representative for Duke said the performer died Monday night in Los Angeles. Duke was being treated for chronic lymphocytic leukemia.

Duke was born in San Rafael, Calif. He appeared on a number of Frank Zappa albums and played in the Don Ellis Orchestra, Cannonball Adderley's band and with jazz musician Stanley Clarke. Duke also played keyboard on Michael Jackson's multiplatinum 1979 album, "Off the Wall."

His wife, Corine, died from cancer last year. He was unable to make music for months, but he overcame his grief to create the album "DreamWeaver," released last month. It features a fusion of sounds and a touching tribute to his late wife on the romantic piano-driven ballad "Missing You."