I saw Deep Purple live once and I paid money for it and I thought, 'Geez, this is ridiculous.' You just see through all that sort of stuff. I never liked those Deep Purples or those sort of things. I always hated it. I always thought it was a poor man's Led Zeppelin.

When we first began and I was 14, my influences were the stuff that was in my parent's record collection like Deep Purple and Led Zeppelin.

With Whitesnake it would have been inappropriate for me to have played Deep Purple songs, although I did at the beginning because I didn't have enough Whitesnake songs.

I wasn't personally that familiar with the Classic Rock bands. That is where Jorn Viggo came in: he played me tons of that stuff - Deep Purple, Led Zeppelin, plus a lot of bands with cool songs, riffs, vocals, etc. We really listened to tons of music.

Am I the man who killed Deep Purple? I don't think so. I think every band from that era, even if you look at Led Zeppelin, if you look at their first four albums, they're extremely different from one another, and I've never made the same album twice.

I still think the best metal bands have a blues feel. The first Black Sabbath album is kind of a bludgeoning of blues. Deep Purple also started out as a blues band.

The only advice I can give is to absorb as much as you can from as wide a spectrum as you can. If you're in a rock band and only soak up Black Sabbath, Led Zeppelin, and Deep Purple kind of beginnings, then you're not going to have much leeway.

My grandad was an opera singer, my uncle a jazz musician; I was a boy soprano in the church choir. But the first performance with Deep Purple was something I'll never forget. All elements were working brilliantly.

In Poland, the whole saying is, 'You've got one eye to Morocco and the other to the Caucasus.' That's the heart of the culture. In England, they say it less romantic: 'You've got a wandering eye.' The saying means my main stream in life must be Deep Purple. That's my main job. Then every now, and I can wander off and have one eye to Morocco.