Roots of Peter Green

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.

Jimmy Soul was an American vocalist. He is best remembered for his 1963 number one hit, "If You Wanna Be Happy."

Otis Spann was an American blues musician many consider the leading postwar Chicago blues pianist.

Martin Peter Birch was a British music producer and sound engineer. He became renowned for engineering and producing albums recorded predominantly by British rock and metal bands, including Deep Purple, Rainbow, Fleetwood Mac, Whitesnake, Black Sabbath, and Iron Maiden.