Sharon Apple's songs are performed by a number of different artists – namely Gabriela Robin, Akino Arai, Mai Yamane, Melodie Sexton, Wuyontana and the Raiché Coutev Sisters. The most notable song in the series is Myung's song "Voices", which is performed by Arai and is the only Japanese-language song in the soundtrack. For the English dub of the series, "Voices" was translated into English and performed by Michelle Flynn. Three songs ("Information High", "The Borderline" and "Pulse") are in English, while "Idol Talk" is in French. Four songs ("After, in the Dark – Torch Song", "Santi-U", "A Sai En" and "Wanna Be an Angel") are sung in the fictional Zentran language.