"I think the period from 1979 to 1982 was the best period for British pop music. And out of all that stuff it's 'Oliver's Army' that I've chosen. It gets more incredible the older I get and the more I understand about it. Visually, when it first came out, Elvis Costello was like a Halloween version of Buddy Holly. It's all distorted - his clothes were too big for him and his glasses were too big for him. He didn't look like a very nice guy - quite frightening - but singing this amazing song. Some songs will move your feet, emotions, and some will move your head - and this has got all of this, all together. I knew all the words. I'd write the words down in my exercise book at school, but I didn't understand any of it. But they're such good words you don't really have to. I love that first line: "Don't start me talking/ I could talk all night". It just brings up that image of youthful idealism - we can sit up all night talking. Before you get into drink, drugs and all that, you just sit up talking because you can. I love that. It could Paris in the late 60s, or London at the end of the century, or Greenwich Village. Musically, I just read about the piano part... Elvis didn't like the song at all and they were going to scrap it, so the piano player suggested, "Why don't we play something like ABBA?" I think it's 'Dancing Queen'. And then they put that on and that was it. But no one wanted to say yes at first as it wasn't a very cool thing to do."

"Hip-hop has always been such a big thing for me, particularly hip-hop production. So many of my favourite producers growing up, and the reason why I wanted to make produced music, came from people like RZA, Premier, Pete Rock, Q-Tip, Timbaland and early Neptunes, early Kanye even - and Madlib and J Dilla are both right up there. I picked these two albums [J Dilla's Donuts is also on the list] that came out on the same label and from the same scene rather than say, Illmatic, because at that point in my life there was a sense of like, no matter how much I liked Public Enemy or A Tribe Called Quest records, I was coming to them late. But I can remember Madvillainy leaking way in advance and thinking it was so exciting being there for it happening. I think it will be remembered as a classic record. I've got to know Madlib since then, which is amazing because he's an absolute hero. I'm coming to hip-hop more from a production point of view rather than listening to the MCing or the lyrics - that's because I produce music. But this is a record where the Doom part and the Madlib are so perfectly matched. It's like the greatest hits of beat producing - every track is completely insane. The way he cuts up the samples is so, so heavy! I think it's pretty much perfect. It's so eccentric. There aren't that many genres of music where eccentricity is embraced in the same way. This is a really, really weird record, but it's totally canonised as being a classic record. That's wonderful. Maybe in the same way Theo Parrish's music is - people embrace that weirdness, but there are other genres of music where they don't. The feeling I got when I made Swim - and it was a little revelation - was that if you asked your general public person about dance music they'd say it's all the same and formulaic, there's got to be a repetitive beat and blah blah blah. But the fact that there is a kind of repetitive rhythmic element is actually quite liberating - so long as it's got that framework you can do anything else on top of it. You don't necessarily have to have something that functions as a song. And hip-hop's the same thing - so long as there's a beat that moves you, the other things around it don't really matter, you can do what you like. You can have a sample of a Pakistani singer over the top or an old soul record or even just random drum machine hits firing off all over the place - there's a crazy variety of things Madlib does when he's producing. But because it still makes your head nod, you can leave that area and be more free."