This was a cool way to show off your music, which was very enjoyable by the way. When I streamed this, it inspired us to talk about music and a whole lot of other things.
I played it starting at 01:43:16, itch doesn't like timestamped links
I do have to mention that it was a lot of work to get this running properly, due to the .pck files being separate from the game. I use the itch.io app to download games, and it won't properly download a .pck file by itself. I had to navigate through a bunch of weird windows directories. I think it would have been better to keep everything together in one file.
The controls being really unconventional things like Shfit Enter would make this hard for people to play. I had to refer back to your itch page here to know how to jump around. Maybe just use arrow keys or WASD?
Other than those things, this was a great little experience!