I posted my first video a couple of days ago --- performing Lament from Riverdance with the Alpha. The Alpha is sending MIDI data directly to Apple MainStage (for the solo) and indirectly via a Max patch to step through the chords. I'm hoping that once I can find out how to distinguish each key, I will dump the sequential access to chords and assign each chord to a key.
I LOVE the expressive ability though.
http://www.youtube.com/watch?v=J7k6Turv22k