Diary wa Fortissimo (Instrumental)

Diary wa Fortissimo (Instrumental) is the instrumental version of Tsumugi Kotobuki's song "Diary wa Fortissimo", produced by Pony Canyon and published on 17 November 2010 within Tsumugi's Character Image Songs album.

The song was written by Shouko Ohmori, composed by Susumu Kawaguchi and arranged by Shigeo Komori.