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George Duke
George M. Duke (January 12, 1946 – August 5, 2013) was an American keyboardist, composer, singer-songwriter and record producer. He worked with numerous artists as arranger, music director, writer and co-writer, record producer and as a professor of music. He first made a name for himself with the album The Jean-Luc Ponty Experience with the George Duke Trio. He was known primarily for 32 solo albums, of which A Brazilian Love Affair from 1979 was his most popular, as well as for his collaborations with other musicians, particularly Frank Zappa.
Source: Wikipedia