Don't waste my time (1969)
John Mayall (born November 29, 1933) is a pioneering English blues singer, songwriter, guitarist, keyboard player and harmonica player.
John Mayall is often referred to as the "Father of the British blues." His well-known band is still called John Mayall & The Bluesbreakers. They started out in the late 1950s in England, using Chicago style blues as a starting basis for their sound, which has evolved from album to album. And while at one point John Mayall was playing a fairly jazzy sound, he has always come back to the blues.