Writing music is mysterious. I don’t know where it comes from or how it happens. It’s based upon inspiration at any given moment–what sounds good, feels good, flows good. I think temperature, time of day, weather and mood all play important roles. The temperature makes my piano sound and play a certain way; the same goes for the guitar (except its easier to tune a guitar). Morning seems to be a good time for me to dig in to a new song, just after my daily does of java. A beautiful sunny day evokes a certain kind of feeling, perhaps more joyful and happy than a rainy day. Rain sometimes brings out the negative or depressing things.
Interesting shit, eh?