Sero hiki no Gôshu

Gauche the Cellist is a 1982 Japanese animated film about a young cellist named Gauche (Hideki Sasaki) who aspires to hone his craft while interacting with various animals that visit his house each night. The film follows Gauche as he receives visits from a cat, a bird, a raccoon dog, and a mouse, each with their own musical requests, guiding him to surpass his mistakes and weaknesses as a cellist.