One of the three albums that accompanied the release of Ar tonelico: Melody of Elemia, and one of the first set of the Hymmnos Concert series albums, this CD contains all of the songs sung by Haruka Shimotsuki and Noriko Mitose, who serve as the Hymmnos Singers for Aurica Nestmile; and Shurelia and Mir, respectively. It also contains the ending theme to the game, EXEC_PHANTASMAGORIA/., and four bonus songs, one vocal and three instrumentals, that aren't in the game.