MK7
4
When I owned a MM, I was even using it in a band as my primary keyboard player sound module (along with a Blofeld). Mod wheel modulations and up to 6 voice layers (which you can mute and unmute to taste while playing) offer quite a lot of sonic possibilities and integrate well with a Midi keyboard!
To refine on dubathonic’s post: you could just plug a Midi tool such as MidiPal between your keyboard and the MM to separate notes of chords to separate Midi channels.