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.

The online musical universe has become Balkanized, with many sites focusing on minute niches. That works well for reaching very specific demographics, which is wonderful for advertising, but it flies in the face of the common wisdom that people's tastes have become more diverse as music of any description has become a mouse-click away.

Ten percent of the American population thinks that Barack Obama is a Muslim. Those are the people that have not learned the skill of filtering information from the vast barrage of inaccurate information that we're all faced with everyday. I think that's a very 21st century skill.

I would roll out of bed and immediately start working, and keep working until it was so late at night that I couldn't stay awake anymore. Then I'd go to sleep and wake up the next morning and do the same thing all over again. I did that every day for three years.

To begin with, the key principle of American indie rock wasn't a circumscribed musical style; it was the punk ethos of DIY, or do-it-yourself. The equation was simple: If punk was rebellious and DIY was rebellious, then doing it yourself was punk. 'Punk was about more than just starting a band,' former Minutemen bassist Mike Watt once said, 'it was about starting a label, it was about touring, it was about taking control. It was like songwriting; you just do it. You want a record, you pay the pressing plant. That's what it was all about.'

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.