Then, you know, the other more-traditional role of the producer in, like, the kind of Quincy Jones sense is kind of part arranger. So you're coming up with, like, these - you hear these songs that are quite bare-bones, and you dream up what's the band doing? What's the rhythm section doing? What's the guitars, strings, pianos - that sort of thing. It's almost like a little toolbox.

So sometimes if I'm working with a rapper, like Ghostface Killah or Nas, producing usually means, in hip-hop, that you make the music. You make the beat, and you give it to them. And they write the rhymes.

D'Angelo could sing the phonebook and it would sound good.

Basically, there's a good friend of mine who works at EMI Publishing, a publishing company. He had asked me - he was like, you know, do you know this girl, Amy Winehouse? She's in New York for a day. She's kind of meeting people to maybe work with on her second album.

I think, you know, for me, whatever I need to slot into to make that music the best it can be or help the artists, or whoever I'm working with, achieve whatever vision they have in their head for a song.

And music is kind of a - it's like a finicky industry to be in of course. Like, tastes change. You're hot one minute; you're not - you know, I've been through it quite a few times, like, on both sides of it.

I mean, my wife is always like - I don't write lyrics. So I couldn't, like, really technically write a song for anyone. I could write a very nice instrumental. So she always sort of gives me a hard time because it's just such a ridiculously impossible standard to live up to, that your step-dad wrote that song for your mom.