For awhile I've been working on an MPE MIDI controller called the Mosaichord. It uses a tuning system called just intonation, where the frequencies of all the notes are related to each other by whole number ratios. I'm using a scale that has 28 notes per octave. Keys are pressure sensitive.
Something I'm working on right now is trying to implement a basic on-board synthesizer so people can use it without a laptop or external hardware synth. (I added a DAC a couple hardware revisions back, I just haven't done anything interesting with it yet.)
The firmware is open source and there's a fairly detailed user manual.
A few weeks ago I got a video of one of my friends playing it at a show: https://mastodon.social/@DesiderataSystems
Something I'm working on right now is trying to implement a basic on-board synthesizer so people can use it without a laptop or external hardware synth. (I added a DAC a couple hardware revisions back, I just haven't done anything interesting with it yet.)
The firmware is open source and there's a fairly detailed user manual.