That is awesome, Kemmrich!
I've been trying to come up with a unique, mid-song key transition, then return to the original key (it's not a bridge...just a little couple of bars/anomalies for interest's sake). I'll be looking into that website.
(Added)
And, Tmidiman.... EXACTLY. Write. Don't know where to start?...just write, free-flow...and don't worry about it. Something will happen eventually. It might stink, it probably will stink, but some day it might not. Old story:
"Keen to not forget his magical dream melody, McCartney wrote some temporary lyrics for the song – about scrambled eggs, and named it after the breakfast dish. They went: "Scrambled eggs, oh, my baby, how I love your legs…" "
http://www.telegraph.co.uk/culture/music/the-beatles/11680415/Yesterday-the-song-that-started-as-Scrambled-Eggs.html