Ongaku Shoujo is an anime film that premiered in winter 2015, produced by Studio DEEN.

About the production: the story comes from an original script, the film runs about 25 minutes and its current status is "finished".

Its main genres are music and slice of life, with themes such as Cute Girls Doing Cute Things, Primarily Female Cast, Idol and Female Protagonist.

On AniList, Ongaku Shoujo has an average score of 59%, an average score, and appears on 4,811 users' lists.

Eri, a girl who likes to stay indoors, meets a mysterious but enthusiastic transfer student named Haru. Eri used to love to sing and Haru loves Eri's singing. The story follows the two during one summer of their high school life as their love sometimes overlaps and sometimes passes by each other. (Source: Anime News Network) Project by Studio Deen announced to be part of Anime Mirai 2015.

Official synopsis from AniList.