I got to the librarian. I really like the art style! It looks fantastic. It's also feels smooth to play.
The dialogue cut against the atmosphere created by the art style and music for me. The humor and 4th wall breaking didn't land for me when everything else felt mysterious and serious.
I'd also recommend having a continuous input until the correct sequence of notes occurs. Whenever I started the note sequence wrong, I didn't like having to fill in the rest and read the failure text again.
Overall this was really cool!