I really love what Ben Vallack has done with the piano (featured in this video if you haven’t seen it). But I’m terrified of trying to learn such a small layout.
I think my ideal would be similarly just 2 thumbs on each side, and instead of 1222 like the piano, I’d want 23332. Anything like this out there?
I’d thoroughly encourage making it yourself, it’s a fun process, plus you could use ErgoGen to make it even simpler. Ben also has good video tutorials on that.
Even without that though, small keyboards like this are really easy yet satisfying to design from scratch in kicad, you’d be able to get away with direct pin which means you don’t even have to place diodes, just place a controller, trrs and switches and route it up. Optionally also a power switch and battery terminals; and a reset button.