David Harrington, who's the violinist and founder of Kronos, is a super open-minded and adventurous guy.

When I'm scoring something like a string quartet, it's all notated music, so it's meticulously written in the score, which is very different than doing things by ear.

There is a reactionary conservative side of classical music, which is not the most exciting side of it. The side that draws me in, there's a real encouragement of risk-taking, going back to masters of that tradition like Beethoven and Bartok and Stravinsky.

Obviously, any living musician born after 1960 has been touched by rock and roll. It's the music of our time, and it's 'in the air,' as Steve Reich would say. My experience of it is just really direct because I'm actually playing in a collaborative band.

The thing I realised about composition is, we remember most composers for four bars of music. Four singable bars of music. Pretty much any major composer from Debussy to Ravel to Mozart to whoever else - you can kind of hum it.