The chords in 'Light My Fire' are based on [John] Coltrane's version of this song. He just solos over A minor and B minor, which is exactly what we did. Coltrane had played with Miles on Kind of Blue and took the idea of modal soloing over one or two chords farther out than anybody. He was a real pioneer - he just kept evolving, going where no one had ever gone. He could always attain this state of ecstasy when he played. Live, there was so much energy, you couldn't believe it. He would play for hours. It was indescribable.