Although John Mayall used a series of lead guitarists for his Bluesbreakers band in the 60s and 70s, including Peter Green and Mick Taylor, it was Clapton who really shone, as his guitar talent had already been formed with the Yardbirds. However, this is not an Eric Clapton album, as the main performer, and band leader, was Mayall himself who was an experienced and exciting blues player. Additionally, strong backing support was provided on bass guitar by John McVie (later Fleetwood Mac) and Hughie Flint on drums to what is going on out front. This one of the two best Mayall recordings, and Clapton features very strongly throughout. Indeed, his work here is probably stronger than the later Cream recordings. This is essential rhythm and blues from a period when good R & B bands were a dominant feature of the UK music scene (Rory Gallagher; Victor Brox: etc), and where Mayall represented the pinnacle. If you like blues and/or Clapton do not miss this one.