I remember both of them having terrible key signatures and thinking they were obviously written by someone who had learned to play by ear. VIP roy though. I guess it's fairly common to start quiet, build up to something, and then end quiet. Just a nice form for music and it suited the tracks that had been recorded to be put in that order.
Lots of his big epic songs do that too iirc, Starla, Mayonnaise, Soma...He liked that form I guess and was good at writing that way.