Trivia / Songs in the Key of Life

• Multi-Disc Work: The album spans two discs plus the 7" EP A Something's Extra, which contains four songs that didn't fit on the album (both literally and figuratively). Its long length also requires 8-track releases and most cassette releases to split the album across two tapes, with only a handful of cassette editions fitting it onto one. Early CD reissues stick each side of the EP to the end of each disc, while CD releases from 2000 onward fit the entire EP onto the end of disc two.
• Referenced by...: The album title has been referenced several times:
  • Irwin Chusid's book about Outsider Music: Songs in the Key of 'Z.'
  • The Simpsons' soundtrack album: Songs in the Key of Springfield.
  • Another soundtrack album. Songs in the Key of X: Music from and Inspired by The X-Files.

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