It is better to make a piece of music than to perform one, better to perform one than to listen to one, better to listen to one than to misuse it as a means of distraction, entertainment, or acquisition of 'culture.'
But one of the hardest things for me to do was to access anger. I could do it on stage. But when I did it on film it was hard for me. That probably has to do with the intimacy of film. And my own personal issues with expressing anger. So I had to learn how to do that.
There is a large stock on hand; but somehow or other, nobody's experience ever suits us but our own.

