When I was young, my mother [folk singer Kate McGarrigle] brought home this recording of Verdi's Requiem and we listened to it from top to bottom. By the end of it, I was a completely different person. It was literally a requiem mass for my former self. I was about 12 or 13. The Requiem just totally hooked into what I was going through emotionally - discovering my sexuality right at the time when AIDS was devastating my community and dealing with intense parental situations.

In retrospect, I'm really shocked at how far I put my heart out there on the line with 'Prima Donna'. I seem to have this knack for being able to accomplish that.

I was reared on folk music.

You had to be an over-the-top, demanding, dramatic figure in order to progress as a woman in Europe over the last few hundred years. Now people say, "You're being such a prima donna," meaning you're being hard to deal with or crazy. It's a bit sexist.

I definitely have a Luddite's approach to what's going on. I find that as I get older, I get stupider. For me, the iPhone is harder than reading Faust. I've been hanging out a bit with Lou Reed, and he's the complete opposite. He's into technology and is kind of like a toddler, compared to me, who's like an old 19th-century widow or something.

You get to a certain age, and you feel the need to reward yourself just for existing.

It seems like the older I get, the more unreal the world becomes.