
Quick answer — Taichi Ogawa worked on Sound! Euphonium 3 (Assistant Director), Tokubetsu-hen Hibike! Euphonium: Ensemble Contest (Assistant Director), Sound! Euphonium The Movie — May the melody reach you! — (Director) and 1 more anime.
Taichi Ogawa worked on Sound! Euphonium 3 (Assistant Director), Tokubetsu-hen Hibike! Euphonium: Ensemble Contest (Assistant Director), Sound! Euphonium The Movie — May the melody reach you! — (Director), Saishuu Gakushou Hibike! Euphonium - Zenpen (Director).