I really believe in the power of music - and I mean literally the power of musical tones - to rearrange the way you can think.

Nine Inch Nails' sound is dominated by clanging synths and sardonic, shrieking vocals.

Critics and fans use the music of their youth as reference points. For years, people seriously wondered who "the next Beatles" were going to be, and classic rock bands were the de facto yardstick for rock quality.

Back in the day, in '91 or so, I tried to interview Fugazi for Rolling Stone, which the band felt stood for everything they detested about corporate infiltration of music. They said, 'We'll do the interview if you give us a million dollars of cash in a suitcase.' Which was their way of saying no.

I really believe in the power of music - and I mean literally the power of musical tones - to rearrange the way you can think.

Bon Jovi's trick is to use heavy-metal chords and still sound absolutely safe. Rock & roll used to be rebellion disguised as commercialism; now so much of it is commercialism disguised as rebellion.

I'm not sure I ever try to make a case for the music. I mean, sometimes the music isn't even that good. I just tell the band's stories; if I describe the music, it's to explain how it moved the overall story along.