This song is a remix of Singing Hill - Harmonics TYRIA -, and like it, it tells the history of the Planet Ar Ciel. However, in contrast to Harmonics TYRIA, which focuses on the origin of the Planet and its history from the creation of the Towers of Ar tonelico onwards, this song tells in detail its origin, the birth of the Wills of Ar Ciel and Demigods, and ends in the beginning of the Ammue Dius (Era of the Divine Sounds) era, while also doubling as a prelude to the other myth songs.