I did quite a lot of the arranging, fitting different sections together, tempo changes, all sorts of things like that. I actually acted as a bridge between Robert and Ian. Not so much composing, rather presenting musical ideas at each rehearsal.
One of the things I have tried to do with this book and with all of them really is avoid that simple, easy, reductionist view of motivation and to show we do things for a complex net of reasons, a real braid of reasons.