Premieres in theaters in Japan on August 30, 2024. Check out the Crunchyroll article for additional information. Synopsis from AniList:
Totsuko is a high school student with the ability to see the ‘colors’ of others. Colors of bliss, excitement, and serenity, plus a color she treasures as her favorite. Kimi, a classmate at her school, gives off the most beautiful color of all. Although she doesn’t play an instrument, Totsuko forms a band with Kimi and Rui, a quiet music enthusiast they meet at a used bookstore in a far corner of town. As they practice at an old church on a remote island, music brings them together, forming friendships and stirring affections. Will they discover their true ‘colors’?
That’s an incredibly specific and unusual model of guitar that she’s playing in the foreground - Rickenbacker 360v64 jetglo