I was very empty after my father passed away. It was an emotional time, as it would be for anyone, but to be in the studio every day was kind of cathartic and healing and it just seemed very natural to continue.

I never really saw my dad around when the Iron Maiden and the AC/DC were playing. But he knew what I was doing. I was just absorbing music. So he just kind of left me to my own devices.

I sometimes listen to music I made and find it to be something I wouldn't want to buy from a store, if there was a store. When it's like that, you have to make what you want to hear.

I did rebel. I was the rebel in my family, because my dad wanted me to go and just travel with him.

I can't even begin to describe how I miss him. He always supported me in everything I did. He was a very wise man and I realised at an early age I could learn a lot from him. He always gave me the right answer. But above all he was a very easy-going guy and all he wanted was to be my best friend. I'm an only child and so he shared everything with me. Of course he was very young to die and I was very young to lose a father. But there was nothing left unsaid between us.

If you were the first person ever to design an application for the iPhone and you patented it, you would be very, very better off than we are right now, you know? But you've got to be the first one to do it. So I figured that Led Zeppelin or the Stones were going to do it unless we just got on to it. So I got cracking with the guys from Apple.

Im still getting used to being called a composer. A poseur, maybe.