Great info. It was a more pressing matter before you got 'quick lilypond export' working for me again, yet this will still be useful. The export midi may come in real handy. Again, nothing against Denemos' playback (will still be using that), I just need some more subtle tweaks in certain places.
Ultimately, it is more about getting a score produced, and being able to hear the dynamics changes more realistically would help with the writing process.
Many thanks for your help with these matters and I wouldn't be surprised if there is another email to reply too that has more useful tidbits!
~Rain