When I was 20, I didn't give a damn about song construction. I just wanted to make as much noise and play as fast and as loud as possible.

If you can play well in the studio, you can play well on stage.

I'm definitely not a guy that comes in the dressing room saying, "Hey, everybody, what a wonderful life." I'm usually brooding about something I think is wrong. I care so much about getting the music right, and if I think someone's slacking I get very upset about that. I just can't go on stage and say, "Another day, another dollar," which I've heard a few people say: I can't go along with that at all. It's got to be as good as you can do - to my own detriment.

Ian Gillan, Roger Glover and I wanted to be a hard rock band - we wanted to play rock and roll only.

One of the reasons I took up the guitar was I didn't want to speak to anybody. I really felt uncomfortable speaking to people, so I took the guitar up so I could hide behind it. I'm not comfortable explaining things, because my brain doesn't work that way.

Sometimes if I'm not playing well on stage, I'll purposely play even worse; I'll tear it apart, because I'm so disgusted with what I'm playing that I'll go the wrong route: instead of trying to make it better, I'll go the other way and really make myself sound bad. Which is a kind of a strange outlook I suppose, really.

I can imagine that Rod Stewart likes giving autographs because he's pure showbusiness.