Admittedly this a bit of noodling but with a point. The Linnstrumennt allows for a full octave of Johnny Reinhard’s 128 (8th octave) harmonic tuning on one keyboard. I used pianoteq as the softsynth. The Linnstrumnet is set to have each column be an octave apart.
Here is the full quality video
I’ll put up the audio file later.
The tuning is in this scala file