I just finished an assignment for Classic Rock—basically a revisit to a horribly long and long-winded profile I did on Santana for Rolling Stone, back in 1972. One of my favorite bits in the story has to do with Carlos trying to get into the Fillmore without paying, and getting caught by Bill Graham. In 1966, Carlos was a dishwasher at a drive-in restaurant, gave most of his earnings to his parents, and just couldn’t afford a ticket. But he could play the guitar just like ringing a bell. One night in October, Carlos did pay his way in, to see a jam involving guitarists from the Butterfield Blues Band, the Dead and the Airplane. He told me the rest of the story...