If a musician’s greatness is measured by the breadth of his influence — and how else should we gauge it? — Jimi Hendrix’s legacy commends him as one of the most inspiring virtuosos who ever lived. Consider just a few of the acts who explicitly cite Hendrix as central to their sound, or who pay tribute by incorporating at least something of him into their work: The Red Hot Chili Peppers, Stevie Ray Vaughan, Miles Davis (who, of course, influenced Hendrix, as well), ZZ Top, Stephen Stills, Public Enemy — the list is as long as it is dizzying in its variety.