Improvisation has been with me since I was a kid, and, taking a selfish pleasure from that, I just thought, "What the hell. It might as well be something other people enjoy."

I was not in a good space in my life, emotionally particularly, so I needed to do something to recharge my batteries emotionally and musically. I took a break and I learnt software and programming a little bit, and that's how I designed my live machine, which I've been using for years.

There's very much a domino effect when I'm playing. In fact, that's a good way of putting it. I'm trying to topple all the dominos in a single stroke. That would be a show with perfect momentum. Every now and again, you get one of those dominos that moves to the side a little bit, traps things and you have to stand them all up again and see if people will go with you. They'll let you off a few times but if you make too many mistakes they'll get a bit anxious.

The most important thing for me - and the thing I get frustrated about when I don't achieve it - is momentum. Sometimes you hit on it quite naturally and other times it's a mad struggle.

You have to sit with the songs until they start to live. Or do things straight-up spontaneously. I set up a beat just like I do in the live show, add the lyrics that I wrote in thirty minutes - I already had a topic in mind because I had this crazy experience with this girl who was trying to get close to me and it freaked me out because she was really close to another friend of mine, and I thought, "This is a story, I'm gonna make this into a song."

Improvisation is risky. I like that. Another practical reason for that is that you have to go out and play every day on a tour. I couldn't do it if I thought I was going to do the same songs every day in the same order, like a full-on robot.

I'm always constantly battling with dry patches. I think I need a Plan B. Thankfully, I've always been able to pull something out of the bag in the heat of the moment.