ya this is a great album....have had it on vinyl for a while now but my buddy burned me the complete sessions, which has material from live/evil and i would def say thats the way to go. also check out Pangaea....its the last release before miles took a short retirement in the late seventies. All this music btw is significantly the influence of Jimi Hendrix on Miles. Since the two never got to make the album they had planned on, Miles decided to add guitars to his work.