Roots of K. K. Downing

John Mayall & the Bluesbreakers were an English blues rock band led by multi-instrumentalist, singer and songwriter John Mayall. The band has been influential as an incubator for British rock and blues musicians. Many of the best known bands to come out of Britain in the 1960s and 1970s had members that came through the Bluesbreakers at one time, forming the foundation of British blues music that is still played heavily on classic rock radio. Among those with a tenure in the Bluesbreakers are guitarists Eric Clapton, Peter Green and Mick Taylor, bassists John McVie, Jack Bruce and Tony Reeves, drummers Hughie Flint, Aynsley Dunbar, Mick Fleetwood and Jon Hiseman, and numerous others.

Sin After Sin is the third studio album by English heavy metal band Judas Priest, released on 8 April 1977 by Columbia Records, and on 22 April in the UK, by CBS Records. Produced by Deep Purple bassist Roger Glover, it was the band's major label debut, their first album for the label, and their only album to feature drummer Simon Phillips, a studio musician who replaced drummer Alan Moore for the recording sessions.