I would say that if you don't feel like talking to the crowd something is wrong and if you force yourself to talk to them things will happen and to that extent things aren't choreographed.
Leo KottkeI think if you are writing an instrumental you are dealing with more of an aesthetic in a sense but a lyric is more of a putting yourself on the line and a much more expensive exercise.
Leo KottkeThe principle element in a performance is risk, and if you're losing interest then by scaring yourself to death the audience will feel it and boy it'll wake them up.
Leo Kottke