How dare you ... ;) Still, thank you for your comments.
Hey, this is a forum for composers, you don't have to deliver a professional sounding end product. About those dynamic markings: we (the bigband that I am playing in) never see dynamic markings in our scores, the conductor tells us how to play the different parts. The timing is the most important, not the dynamics. If you try to emulate that on a computer the result will be disgusting most of the time.
That's right. Real musicians forever!
Now you've got me. I write my own (open source) software, and the drum part needs upgrading. However, our drummer hardly ever looks at his score, so why should I bother?
Who said that this piece is jazz? There are some jazz influences but not much. About the books: I read several of them, and I know that I should start with the chords beforehand. That's not easy, because good melodies jump into my head now and then, and I want to use them. Finding a melody that fits a given chord progression is something that's not natural for me. Actually I joined this forum in order to find out how other composers are working.