[wvh]

He was not a great guitar player, but he had an ear for tonality and combining melodies on top of those ambiguous chords. I read somewhere he was a Beatles fan, and I can see how their pop vocal layering and more complex instrumentation via George Martin and Co might have had an influence above and beyond the basic blues pentatonic scale and chord progression that inspired a lot of rock and hard rock. Dude did not accidentally "make it", which is the other, often-heard opposite opinion than that of him being a genius.