$15 dollars and a few hours of programming later....
So I got this email from PrecisionSound, saying that their Weltmeister Accordion sample set was reduced to $15 until November 1st. Normally, if I want accordion sounds, I'll just play one of my several accordions. But I listened to the demos, and the volume control, and the fact that there were separate samples for push and pull of the bellows seemed to make these samples just a bit better than normal. Plus, I could load the samples into any one of my softsynths which allow microtonality, and that would give me a fairly realistic sounding microtonal accordion-like thing. So, I decided to take a chance, and bought the sample sets. I then found that the key to the volume changes was to use midi continuous controller 7 - very nice swells and diminuendos that way. I made an ArtWonk patch which plays notes and rests, and has swells for the accordion parts, and is tuned in one of Erv Wilson's "Scale Tree" MOS scales - a 13 notes in the octave one - and voila! A nice little march, one minute and 4 seconds long. It was fun to make, and I hope it's fun for you to hear. Enjoy!