I think it's maybe because Sergeant Pepper's came out when I was about 13 or 14 and that was a pretty impressionable age, and it was such a kind of radical period. But that period of the Beatles really had a big influence on me and I think are directly related to hyperinstruments.

I listen to new music by composers who are interesting to me. I listen to some; I don't know if I want to call it pop, but it's some interesting artist that gets my attention, I listen to in the mornings.

I'd studied piano first and switched over to cello when I was about seven. I played mostly chamber and solo classical music. I got really involved with rock music when I was a teenager. I wired up my cello.

One of the big mysteries of music is, if you take music without words, it means something to us because we know it's about something. It's about something important humanly, but since there are no words, nobody knows what it's about.

I've done a lot of operas. I've probably done more different kind of operas than anybody.

Over my career, I'd say the last 25 years; we've gone from music and computer being for 10 people in the world to having personal computers, to now being able to do amazing things on your iPhone, or with Rock Band. So, right now there's enormous capability with technology in our devices that everybody has access to.

The one obvious thing is that the devices are so good now that you can also see their limitations extremely well.