Stevie's 1976 double album is looked at here. Stevie had already released the smash album, Innervisions, but as Berry Gordy explains, he took the experimentation to a new level. Quincy Jones and Herbie Hancock are in the studio with Stevie, along with some other top musicians who contributed, as we examine the creation and recording process, of what many consider Stevie Wonder's finest hour.

• Nick De Grunwald

• Tom Petty
• The Edge
• Rob Halford