If you're looking for anime similar to Sound! Euphonium 3, you might like these titles.
The Saigo no Kotoba (Final Words) book follows Kawashima's life after her mother's death, and her pursuit of her singing dreams by performing free concerts on the streets of Tokyo's Shibuya district.
The 10 members of the concert band club who failed Taki's audition form "Team Monaka" to support the club members participating in the Kyoto Concert Band competition. Even as they support the performers, they continue to hone their playing, and make monaka-shaped good-luck charms to hand out to their club mates before the competition. Although they didn't play in the competition, they still had things they had to do. But on the day of the competition, the members on their way to the concert hall receive a shocking message! This is Team Monaka's hot summer story.
Gauche is a small-town musician with a passion for playing the cello, and is a dedicated member of the local orchestra. With an important performance in a matter of weeks, the group practices daily to hone their skills. But lately, Gauche's musical ability has been lacking, and to get it back, he must accept help from the unlikeliest of kin -- the furry and feathered friends who dwell on his land...
Spring in the first year of high school. Kumiko, a member of the brass band in junior high school, visits the high school brass band club with classmates Hazuki and Sapphire. There, she comes across Reina, her former classmate from junior high. Hazuki and Sapphire decide to join the club, but Kumiko can’t make up her mind. She recollects her experience with Reina at a competition in junior high school.
Having won first place in the Kyoto Concert Band Competition, the Kitauji High School Concert Band prepares to go up against the many esteemed bands competing in the Kansai competition.
Follow Kumiko as she takes on the role of mentor towards the incoming class of new members of the Kitauji High School concert band club as the group aims to take the gold at the National Championship competition.
Nitaro's mother passed before he was old enough to remember her, and after smallpox leaves him blind at a young age he finds a connection to her through music and her shamisen guitar. Happily, Nitaro finds out that he has an aptitude for the shamisen and his skills are soon recognized by a goze (a traveling female bard) who takes it upon herself to teach him the traditional style of play. However he quickly realizes how restrictive this style can be and, frustrated, he begins the long journey to find and perfect his own style of play.