Songs In The Key Of Life – Stevie Wonder (3 LP)

From Wikipedia:

Songs in the Key of Life is the eighteenth studio album by American singer, songwriter and musician Stevie Wonder. A double album, it was released on September 28, 1976, by Tamla Records, a division of Motown. It was recorded primarily at Crystal Sound studio in Hollywood, with some sessions recorded at the Record Plant in Hollywood, the Record Plant in Sausalito, and The Hit Factory in New York City; final mixing was conducted at Crystal Sound.^[6] The album has been regarded by music journalists as the culmination of Wonder’s “classic period” of recording.^[7