The Lumatone keyboard is a generalized musical keyboard with keys that light up in different colors, which has all sorts of applications for exotic and microtonal tunings. I'm starting to learn how to use it and figuring out how to map different EDO tunings (equal divisions of the octave) to the keys. Here's a brief demonstration of a few interesting EDO tunings (15, 19, 22, 24, 26, and 31 notes to the octave), with a bonus sample of a regular temperament, keemun[15].