Hi RickisBears,
Ok, regardless of what those C9 notes are they sound terrible, so I put in some logic to strip notes outside the standard 88.
I'm now on track to have a band-in-a-box-ISH style arranger next weekend (bare bones text lead sheet+.STY=>.MID). But it won't arrange chords EXACTLY as yamaha does. It will keep all .sty notes within the chord and follow the CASM, etc.
Regardless of whether it's actually done, I plan on starting a chord sequencer-ish program next weekend. We'll see how that goes.
So I think I'm good with my questions for now. I'll come back and bug everybody if I come across some more.
thanks !
...Steve