Home People Michio Mamiya Michio Mamiya movies Michio Mamiya movies Michio Mamiya Movies (6) Grave of the Fireflies (1988) As Original Music Composer. He was 58 years old The Story of Yanagawa's Canals (1987) As Original Music Composer. He was 57 years old Gauche the Cellist (2006) As Original Music Composer. He was 77 years old Horus: Prince of the Sun (1968) As Original Music Composer. He was 39 years old Chibusa o daku musume tachi (1962) As Original Music Composer. He was 33 years old Love Letter (1959) As Original Music Composer. He was 29 years old