For MM owners who are reasonable keyboard players:

I've been an MM owner for a couple of weeks now... Although there are
hundreds of patches available online, there are very few good polyphonic
sounds for keyboard players, so I had a go. See attachment (10 sounds).
Some of them are very simple (but effective IMO!)

All sounds are minimum 5-voice polyphonic (which seems to be the 
threshold for "live" playability). Add a little reverb and use aftertouch, 
mod wheel, knobs etc. There are a few comments in the notes floater.