It probably couldn't be done with pipes . . .
https://www.youtube.com/watch?v=UmGhF32ulKc
but inspirational nevertheless.
Hideously difficult to navigate
Best wishes
David P
I remember seeing an 'enharmonic' organ at the erstwhile harmonium museum in Saltaire.
I have a photograph I took at the time, though I'm not sure whether I can post it on here. (It is, of course, a harmonium rather than a pipe organ.)
Interesting video David.
I've seen (and even once attempter to play) the Harmonium when it was at Saltaire - but to be fair, that was designed more to demonstrate the principals of intervals, etc. than a fully functional musical instrument.
Microtonal music is certainly an interesting area.
Every Blessing
Tony