"Miles Davis came in a couple of days and said, "Oh, man, I love that. Keep going." So he said, "Let me know when you need trumpet." And he came in, and he was sitting there, and I was very intimidated, because now he's going to play the trumpet on something that I wrote." He starts to play, and I go, "That's not right, but I don't know how to tell him it's not right." Finally he goes, "When are you going to tell me what to do?" He said, "This is your music. I know you know how it's supposed to sound. Stop fooling around. We don't have time.""