I saw Sister Rosetta Sharp on a blues package tour circa 1963/63. It included Otis Spann, Brownie McGee and Sonny Terry and (what was his name....? Oh. yes...) MUDDY WATERS! Had never seen a woman play an electric guitar before that day. Shattered a few delusions, I can tell you.
Reckon that trumps your occasional viewings of Trower at the Bridgewater Bridge and Social Club, ole fruit...