Probably sound like a madman, but hear me out
Each character’s song represents them, through and through. (I’m just doing the 6 from the GPF because know most about them (except maybe Otabek but like … we don’t know much about him #littlescreentime)
How? Well (TIME FOR SOME PROOOOOF)
This got hella long. TL;DR: the YOI creators knew where they were going with their characterizations and managed to convey this through each of the program’s music
Details under the cut.