I feel that the story is losing a lot of steam these past few chapters. it's fine to focus more on the music, and it's even fine to keep our couple separated for a while to build tension, but I feel that this situation where they talk casually at school but never have any big romantic scenes is a bad middle ground that feels unsatisfying.
if the author wants to separate them for a while, commit to it and have them totally break contact! however if they're still gonna interact then more time needs to be spent on them as a couple or else every time they talk it just feels like a misfire