Boys Gilding the Lily Shall Die!?, Volume 4

This girls love (yuri) school romance features realistic, relatable characters and complex interpersonal relationships against a background of a high school band setting.
Chihaya Katagiri has always been the first trumpet in her school’s brass band — until Hibiki Aikawa transfers from a prestigious school and takes the spot. Despite initial suspicions, the two quickly become close; Katagiri admires Aikawa’s talent and enthusiasm for playing the trumpet, and Aikawa is struck by Katagiri’s grounded treatment of her abilities, as well as her love for music.
Series Overview: Ongoing girls love manga series