The most surprising and rewarding chapter to write was the Butthole Surfers chapter. I'd always thought of them as a bunch of drug-addled reprobates - which maybe they were - but it turned out to be more complicated than that.

When you're writing, you're only a brain and some fingers, but drumming, you're involving all four limbs, and you're hearing stuff and you're converting your ideas into physical motions, getting physical feedback from things you are touching - it's pretty cool. It's a really a nice contrast to writing.

A lot of music fans are still interested in insightful perspectives on music - maybe even more interested than ever, since everyone needs help making sense of the incredible variety of sounds that have sprung up in the wake of the Internet revolution. There's a lot of room for unique, qualified voices who can provide good reads.

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.

People shared everything: information, equipment, their floors, whatever. There was strength in unity.

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

The American indie underground made music for like-minded people who thought for themselves. Thinking for yourself is intrinsically subversive.