Balala the Fairies: Finding Melody

To help the fairy Queen find her disappeared friend Melody, who was a skillful music fairy from the Music Castle, Sally, Maggie, Michelle and Beibei encountering nine musical magicians and fighting with dark musical witch Voiceless. Sally and the fairies suspect that Melody is connected with the dark power behind the scene. While, what is the truth?(Source: Mahou Shoujo Wikia)