There's so many different styles and facets of the 360-degree musical sphere to listen to. From tribal to classical music, it's all there. If the bottom was to sag out of that, for God's sake, help us all.

I remember one particular occasion when I hadn't played a solo for, quite literally, a couple of months. And I was asked to play a solo on a rock & roll thing. I played it and felt that what I'd done was absolute crap. I was so disgusted with myself that I made my mind up that I had to get out of it. It was messing me right up.

Music is the one thing that has been consistently there for me. It hasn’t let me down.

A lot of people can't be on their own. They get frightened. Isolation doesn't bother me at all. It gives me a sense of security.

I'm pretty optimistic about the future of rock... it will be back to composition as in classical music or jazz.

We kept moving forward and didn't try to recreate the past .. the approach to each album was radically different every time. Many bands would have some success and, because they were locked into having a single - something we didn't have to worry about - they had to make sure there was something similar on the next album ... that was never the idea with Led Zeppelin .. the goal was to keep that spark of spontaneity at all times.

This week, I'm a gypsy. Maybe next week it'll be glitter rock.