When you build a building, you finish a building. You don't finish a garden; you start it, and then it carries on with its life. So my analogy was really to say that we composers or some of us should think of ourselves as people who start processes rather than finish them. And there might be surprises.

In the 1960s, people were trying to get away from the pop song format. Tracks were getting longer, or much, much shorter.

I think the other thing that's important is getting to a place, which very, very rarely happens with improvising groups, where somebody can decide not to play for a while. You watch any group of musicians improvising together and they nearly all play nearly all the time. In fact I often say that the biggest difference between classical music and everything else is that classical musicians sometimes shut up because they're told to, because the score tells them to. Whereas any music that's sort of based on folk or jazz, everybody plays all the time.

My interest in making music has been to create something that does not exist that I would like to listen to. I wanted to hear music that had not yet happened, by putting together things that suggested a new thing which did not yet exist.

W]hat makes a work of art ‘good’ for you is not something that is already ‘inside’ it, but something that happens inside you.

A big ego isn't necessarily a bad thing. A big ego means that you have some confidence in your abilities, really, and that you're prepared to take the risk of trying them out.

Whatever you now find weird, ugly, uncomfortable and nasty about a new medium will surely become its signature... The excitement of grainy film, of bleached-out black and white, is the excitement of witnessing events too momentous for the medium assigned to record them.