I see no mention of 'Ten Years After' in any of the lists posted -- Alvin Lee and group were certainly "one of the best", in my opinion. Personally, "rock & roll" to me, will always be Little Richard, Fats Domino, Buddy Holly, Bill Haley & The Comets, and all the others from the 50's -- many of whom I had the good fortune of seeing in-person once or twice. Those were the days!!! Ouch -- getting old!! Cheers!