1. Hearing Voices

    December 22, 2001 12:00 AM EST Ackerman founded Windham Hill in 1976 to release an album of his solo guitar music, In Search of the Turtle's Navel. Ackerman founded Windham Hill in 1976 to release an album of his solo guitar music, In Search of the Turtle's Navel. He has continued to record in this style for the…