On live performance: "Yes. l'd really like to do some concerts of completely improvised music, but one of the reasons for doing a concert is to experience the enjoyment of the people there, so you have to include excerpts of music from previous albums because they want to hear something they already know and like. There's nothing wrong with limiting your spontaneous playing to just improvising around old themes, but what is wrong is playing a concert solely to promote a certain record. I've never done a concert tour just to promote Heaven and Hell or Chariots or anything like that. That sort of thing seems pointless to me."