Hi rikkisbears:

I do not think the SD2 will solve the SD1 situation, the problem is because when you play ONE note in the right side, is actually 3, so, if you play a full chord and if you use also a program that contain 2 or up to 4 layer sounds, each note you triple it and also multiply by the number of sounds that you layer to make up the program sound. So, besides the pattern playing, 64 note polyphony is not in off.....and using the SD2 external module, I have not seen the specs, but I think it was design mainly to use as a Laptop external midi module, so, that will not solve the problem, I am waiting for the release of the smaller but newer SD5(128 notes), and perhaps I will get it until Ketron or Korg release a flagship that appeals to my playing needs.