The slow blues standard, "Five Long Years", features extended guitar soloing by Clapton in a style he further developed with John Mayall & the Bluesbreakers. Clapton and Samwell-Smith share the lead vocals on "Good Morning Little Schoolgirl", which is based on the version by the American R&B duo Don and Bob. Bo Diddley's "I'm a Man" (which became a hit when the Yardbirds later recorded it with Jeff Beck) and songs by Slim Harpo and John Lee Hooker round out the album.