Works fine in Mixcraft. A great idea here, really great - what it does it does well, and I applaud whoever came up with this idea. But this is far too limiting IMO. Only one voice, and it's not like you can play something here and it records (in MIDI) the actual chords. That means if you want to use another VSTi to get a diff sound instead of the one and only sound built in (a basic electric piano-y sound), or even want to see what freaking chords are that are actually playing, too bad, you can't. You're "stuck" with this. If you're fine with that, no problem, and it can still be useful to sketch out ideas quickly and easily, esp if you're music theory challenged :) I just wish it had more flexibility and visibility into what it's doing.