The score arrives the same day as the film

Sound Will Join, the original soundtrack to the second part of Sound! Euphonium: The Final Movement, was released on September 11, 2026. Music is by Akihito Matsuda. It comes as a 2-CD set in two editions: a limited edition (LACA-39199~200, ¥7,150 incl. tax) and a standard edition (LACA-19199~200, ¥3,850 incl. tax). The discs collect the underscore, the wind-band pieces the Kitauji High School concert band performs on screen, and the theme song "ReCoda (The Final Movie Ver.)" by TRUE and the Kitauji High School Concert Band.

The release date is the first thing worth noticing. September 11 is also the theatrical opening day of the film itself. Part one followed exactly the same pattern: the film opened on April 24, 2026, and the part-one soundtrack Melody across the Seasons — also a 2-CD set — arrived on that same day. Twice in a row, this series chose to put the music out alongside the images rather than trailing behind them.

Score albums normally appear one to three months after a film opens. Track titles are spoilers; distributors want the box office first; the final cut of a score often lands only days before release. There are plenty of reasons to wait. Doing it on the day, twice, reads less like momentum and more like a statement from the production side: here, the music ranks equal to the story. When the official account published the track list, it added a note asking fans to read it only after seeing the film — proof that the list of titles is itself a blueprint of the plot.

The same composer writes the underscore and the music the characters play

Matsuda's position in this franchise is unusual even by the standards of Japanese screen composers. He has scored the series continuously since the first TV season in 2015, and what he writes is not only background music. The wind-band works the characters actually perform at competition are his original compositions too.

Consider how awkward that assignment is. Underscore exists beneath the image and must never take the lead. The in-story competition pieces, by contrast, have to carry the narrative outright — they are the music high-schoolers stake a year of their lives on — and they must be convincing as real competition repertoire within the world of the show. Music that submits, and music that asserts. Matsuda has kept both running side by side inside one work for a decade.

The results leaked out of the anime entirely. "Crescent Moon Dance" (Mikazuki no Mai), the piece that crowned the first season's climax, was published by Winds Score as actual wind-band sheet music at Grade 3.5, with a reduced-ensemble arrangement in circulation as well. A fictional free-choice piece written for a cartoon became a piece real school bands play. Film music that travels from being heard to being performed is a rare thing.

From Melody across the Seasons to Sound Will Join

The sequence of album titles rewards attention. Part one: a melody that carries across the seasons. Part two: sound joining together. Add the soundtrack to the special Ensemble Contest chapter, titled Catch Your Tone, and a shape appears — catch your own sound, carry it through the seasons, then let the sounds converge. The arc of the whole series, from an individual finding a voice to a group stacking voices, is written into the titles. That a soundtrack's naming can double as criticism is only possible because one composer ran the entire distance.

  • Part 1 OST — Melody across the Seasons, released April 24, 2026, 2 CDs
  • Part 2 OST — Sound Will Join, released September 11, 2026, 2 CDs
  • Music — Akihito Matsuda, continuously since the 2015 TV series

The second film runs 127 minutes. Taichi Ogawa directs, Jukki Hanada handles series composition, Akiko Ikeda and Kazumi Ikeda are credited with character design, Kyoto Animation produced it and Shochiku distributes. Roughly ten years after the 2015 TV series, Kumiko's story closes here.

The limited edition uses a canvas-board-style EP-size jacket with a backing that lets the package stand on a shelf as decor. The booklet carries interviews with performers and a wind-band instructor, plus comments from Matsuda and the music producer. That a score album's limited edition is engineered as something to display says something quiet about how this series' music has been received all along.

Ten years of accumulated sound now fits on two discs. The music that passed by once in a cinema can finally be lined up and heard in order, from the beginning.