After looking at other comments and looking up the terminology, I started to get into the game. I really liked being surprised in the platforming section after the first song.

I hope you'll come back to this idea at some point!

It's a very neat idea, combining music notes and platforming! I think I ran into a couple bugs, particularly on the second music stand where I couldn't play any music there. It was also a little unclear what music I needed to compose for that second music stand. The idea behind this game has a lot of potential though, I wonder if you could integrate the music playing into the platforming somehow, instead of just having one after the other.

i couldnt seem to be able to open the music ui, i think i collected all notes and i was hitting enter.

I think your take on the idea of combining platforming with music is unique, although I couldn't seem to get past the second music composition section (it skips back to the first one when I hit Enter). Could've been more fleshed out.

I think the concept is interesting. I wasn't sure if the goal was to play a specific song or if it was to improvise an original piece using the notes you've gathered. It has some potential to be a relaxing zen game. 

Man, I'm sorry I was not able to play the game properly, I tried but I don't know anything about music theory! Haha. I also tried to add the notes to the sheet by pressing Shift, but the notes sheet indicator went from left to right but it never stopped!