Polyphonica is a visual novel created by Japanese Ocelot and released for PC. Apart from the game, several series of light novels have been created, and an adaptation to manga. An adaptation to anime began airing in Japan on April, 2007. Another anime adaptation aired between April and June 2009, and was a prequel to the events in the first anime.
In the continent of Polyphonica, spirits materialize in the world, surviving on the music you play humans, and living with them. While the spirits do not appear often, some spirits have enough power to materialize in human or animal forms and live together with humans.
