India, March 8 -- I t began, as reveries tend to begin for me these days, with a lazy afternoon and a pair of headphones. I had put on audio from the Monterey International Pop Festival of June 1967, and within the hour I was doing something I've never done: deeply missing music I had essentially never heard. Next year will mark 60 years since those three days in California. Sixty years since a 24-year-old man walked onto a fairground stage; made the electric guitar do things it had no business doing; and then, as if to underline the point with an exclamation mark, set the instrument on fire. Jimi Hendrix would be gone in three years, dead at 27 from an accidental overdose. He had been a recording artist for barely four years. Listening to ...