I'd love to see what someone with musical talent could come up with in this. I have not so much any of that, but I can appreciate the mechanics behind it.
I did have some trouble setting up dominoes so that they all fell, it seemed like the top-down view wasn't available on initial placement, so I'd end up with some wonky lines, then afterward I could see it from above and needed to rework things quite a bit. Rotating the dominoes was also a little slow, I didn't actually catch that one was rotating when I first tried to do so.
The visuals plus the different notes for each domino are the highlight, of course. :)