We are the song

"In Cadenza music is power, and twelve-year-old Elissa is one of twelve singers, voices of the Goddess, who can sing miracles into being and bring healing and hope to the world. . . . In the war torn kingdoms of the world there are rulers who would like to use her and her song to gain power instead, and Elissa [struggles] to understand what the Goddess wants her to do, and how to protect herself, her composer, Lucio, and Cadenza itself"--OCLC.