The work I've done is the work I know, and the work I do is the work I don't know. I don't know what I'm doing.

I shift between mediums very frequently. Instead of taking a break from writing, I just write in a different medium or in a different way or for a different purpose, so that I don't actually stop writing - I just go to something else. Like going from a big symphony to a piano piece is great and very refreshing, I find. And then going from that to a big concerto, and then having to go out and play.

I've been working in theater, really, since about 1965. I started working with the Mabou Mines about then, and in a way I've always worked in the theater, but it's never been a main part of my work. And it wasn't until Einstein that I kind of shifted into high gear with theater, working with Bob, with Bob Wilson. And since then I find it a very attractive form to work in. It's just an extension of my work.

So the real drama for me is balancing live performances and writing, and one of the ways I balance it is I write in hotel rooms. That's not exactly balancing. Actually, writing in hotel rooms means that I'm refusing to deal with the problem.

There's almost no content in terms of language at all. I don't like using language to convey meaning. I'd rather use images and music.

I consider the first 20 performances just learning the piece. Think about it this way: If you think about a pianist who plays a Schubert sonata through his whole lifetime - if you listen to Rubenstein or Horowitz playing their repertoire later in their life, you understand the richness with which they play that music, and how differently they must have played it when they were younger.

My biggest problem about writing is whenever I write piano pieces, because I then have to learn to play them, which is sometimes not so easy.