The 3 stunners from Stevie Wonder were Talking Book, Innervisions and the culmination, Songs In The Key Of Life. Recording began in 1974 and ended up being about a year late. It was released at the end of September 1976. It was a phenomenal success, and yielded many hits and cover versions, as well as countless samples on other artists’ songs. Now that "Songs In The Key Of Life" is coming up to 40 years old this year, it deserves a revisit.