My math (which I'm not 100% sure is correct either) says the accuracy is about 1.21 cents at B8. Anyways, that should be well within reasonable tolerances considering it's near the upper end of human hearing anyways. Even in the mid-ranges that...
The layout is my own invention. It's not terribly difficult to play, aside from some of the inherent complexities of using just intonation -- basically, you have to be aware of distinctions between notes that are only slightly different in pitch...
A few months ago, I added an on-board synthesizer to the Mosaichord, my Teensy-based microtonal MIDI controller. I thought I'd post some notes here about how that went, what worked and what didn't, it case it's useful to anyone else doing the...