here's an arrangement of one of the most incredibly impossible pieces for player piano: https://www.youtube.com/watch?v=FUVc9lDYsNE
@lizardsquid https://www.youtube.com/watch?v=Cb3eLFjWTlk Have you seen this one? (reposted because this one is on an actual player piano which is Better™)
@Felthry now I've listened to the whole thing: it's amazing!
@lizardsquid I know! That's what reminded me of it.