Executives do not on the whole do well with comedy. They can't understand it, they can't read it, they can't spot it.

Don't want to turn into mini-me.

We learnt a lot because we got in with real choreographers who tell you what they need from a song, because a song has to advance the story. Then real directors like Mike Nichols tell you where you can have 'B themes' and 'C themes', and we go oh yes, B themes and C themes! So we were taught in the finest school amongst the finest people. And also by the school of experience.

So it became in my mind a nine-carol service; an oratorio and orchestral concert all in one, but with narration. That's something I've learned about, because it's the story that keeps you in there. I wrote a libretto and I gave it to John Du Prez. We normally don't work in this fashion but I said off you go, and he went off for about three months. He brought me back this demo which blew my mind.

I got locked into a tradition [at Cambridge] of doing comedy.

To me, the musical is best when it's a musical comedy. So if you have a very, very funny show, and very good, funny songs, that's what the musical does best.

My father, who was a sergeant in the RAF during the Second World War, was killed in a hitchhiking accident while returning home on compassionate leave. As a result, my mother had to get work, as a nurse, and at seven the RAF put me into a boarding school and ex-orphanage called the Royal Wolverhampton School.