George Duke's Soul Treasures is a Kontakt sample library product available from Native Instruments. It features George Duke playing riffs on the piano, clavinet, rhodes, and wurlitzer at different tempos. These sounds are very useable in hip-hop, rnb, commercials, and soulful house productions. I would have preferred the sounds in Acidized wav or Apple loop formats.
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"Good music is good no matter what kind of music it is." -- Miles Davis