I've used DefleMask for years and it's been good but I've always wanted to see more midi support. As it is, the midi in poly doesn't seem to do anything when you uncheck it and always plays poly notes. There isn't a midi sync so I can't start it from external midi clock. And no midi file import/output support. I mean, I'm pretty sure I read something about why not a long time ago when I was using the free version, but since I paid for it I'd really like to advocate for these two features. Midi input is nice but kinda wasted if we can't record in time with the tracker roll in some way. Not sure where to suggest features but like I say, the paid version is nice, but kind of just a UI over-haul compared to the free version.

Also encountered a bug where the whole pattern fills up with junk data and the program freezes. If I can replicate it I'll try to document it and figure out the best place to put a bug report.