"Sound! Euphonium" is a Japanese anime series based on the light novel written by Ayano Takeda. It follows the story of Kumiko Oumae, a high school student who joins her school's concert band. The series explores her experiences, friendships, and challenges as she strives to improve her euphonium playing and contribute to the band’s success. The anime highlights themes of passion, teamwork, and personal growth. It showcases the dynamics within the concert band, including the relationships between members and their dedication to music. The series has received praise for its animation quality and character development.