AXiS-49 Revealed
http://musicscienceguy.vox.com/library/post/the-axis-49-reveled.html
Guy opens his AXiS-49 Harmonic MIDI keyboard. Interesting and clean design.
Everytime I see that instrument, I think:
“That’s one weird device!”
Nice mechanics on those buttons.
I wouldn’t call the PIC processor a “USB interface”, though. It’s an entire computer on a chip and it probably runs the show.