This entire story is a friggin fever dream.
It’s a cool premise, mixing up the whole “regressing with constellations” genre with music; it’s actually super interesting. At least, the premise is. This execution of it is… I dunno, man. It feels rushed and unplanned, like the author is just kind of stumbling from story beat to story beat in a desperate attempt at maintaining reader’s interest in the story. Look at how fast we move from the end of an “arc” to the setup of the next arc, and then to the actual next arc at the beginning of the story. This man finished an album, got a call from the US, and was meeting Queen within like 2 chapters. Also his dad; we never heard of that dude, but now we’re on our way home to watch the MC prove himself to this man that shaped the MCs love for music, apparently. And now Paganini’s pissed off and possessing the MC because he’s got daddy issues? What the hell is pacing, anyways? Every arc is the narrative equivalent of a shotgun wedding: rushed, unplanned, and a poor choice for all involved.