Kenji Kawai
The tale is of mixed genres, from Science-Fiction to Ecology and through Mythology to Fantasy. It is a three-act musical drama concept with a prologue and epilogue, both named "intermission", by Kenji Kawai who is the composer of the score. The characters' introduction and drama is narrated through the lyrics of the opera-like Noh chanted recitation, which is self referred to as "utai" () within the movie.