I was really really struggling to get through the first few notes and then something clicked and I made it all the way to the 3rd song. I think a vertical indicator on each shelf to show what the currently "active" column is would really help. Also maybe an indicator to know exactly when it's going to move along, one for each side? Kinda like how other rhythm games have notes moving along.
Otherwise really fun though, I liked the animations and especially the cinnamonrolls being flung all over the place. Music is really good too, just listened to the full thing on soundcloud and it's one of my favourites in the jam.