Thanks for playing and glad you liked the game. I appreciate the feedback for the platforming and wall sticking, someone else also pointed that out and it definitely can be improved, I just didn't think about it much during development. As for the no-music in the library, that was 100% intentional, with the idea being the library gets "activated" and alive, so the player knows they can continue upwards, otherwise it just felt like a lever was pressed and nothing happened :)
Just saw that you found my kitty picture :) so happy you made it there, it's something small I did for my cat that I grew up with.