12 strings is one thing, but how about microtonal? That's instead of adding strings, you add frets!
If you haven't heard them yet, you're in for a wild ride: https://www.youtube.com/@AnginePoitrine
A bit spotty, but alright; meanwhile the Italian instrument makers said guitar-harp? Hold our expressos, this'll take some discipline:
That's the first time I've heard microtonal work in a rock setting. Pretty good!
I see your added frets, and raise "add frets on the fly using Lego":
https://www.youtube.com/watch?v=rPCEImSfCwc