Hello! It's a cute concept with the two worlds :). A few notes below:
Tech notes:
-In Azuls room, I could walk through the table
-loved that there were sprites walking around town, but a few of them seemed to get stuck in place and were walking on one spot
-White writing on white town sign: not the easiest to read, even with the outlines
-Could be nice to have sound effects on different terrain types (you might not have time for this :D)
-I can walk through most of the trees in town
-The shop that was supposed to be open was not open until I actually found the tracks in town. They were a bit tough to spot
-Map is a bit unclear, but then again, I'm terrible with maps :D
-I liked the harmonica street signs and music themed houses! Good job on using colour pallettes to delineate between worlds
-Abrupt transitions
-Some narration started up before I had a chance to actually leave the bedrooms to go to town. It continued on about how they had travelled to the wall before I even thought about leaving the room
Narrative notes:
-These are more things to think about for future projects since you are locked into a lot of choices by this point. I felt that the opening exposition just went on a little too long, or at least it went on too long as unplayable. There were a couple of points where you were just repeating information you said earlier (about the music dividing them)
-In general, I felt like dialogue between the characters (over a radio) to learn about the world would be more engaging than a narrator telling us how the characters feel and the exact reason why they felt that. By interacting with the characters rather than listening to someone else tell us how they feel, we can feel more attached to them and put some of the pieces ourselves. Understanding though that it's a lot more work to do that and this is a student project
-A fun mechanic to add in would be dialogue trees. Again, you are locked in at this point and that is a lot of work :D
-Fun voices from the other characters, but it was a bit confusing to have a one sided conversation
That's it for now! Nice work!