In the year 2045, singing is prohibited and all music is created by an app called MiucS. A high school student named Seria Aiba discovers a singing 'Great Ghost' and becomes involved with a group of psychic mediums called TERA. What is this anime series called?

The anime series described, where singing is prohibited and music is generated by an app called MiucS in the year 2045, is called *GHOST CONCERT: missing Songs (Review)*. This narrative centers on a high school student named Seria Aiba, who possesses the unusual ability to perceive spirits. Her life takes an unexpected turn when she encounters a "Great Ghost" that is capable of singing, an act outlawed in her society.

In this futuristic world, human creativity in music has been entirely replaced by the artificial intelligence of the MiucS app, which composes and performs all music. Seria's discovery of a singing ghost, specifically the spirit of Cleopatra, challenges the established order and draws her into a hidden conflict. She soon becomes involved with TERA, a group of psychic mediums who are also engaged with these powerful otherworldly beings.

The series is part of a larger "Song Battle Series" project, making it a successor to the popular *Symphogear* franchise, with Noriyasu Agematsu, a creator from *Symphogear*, credited for the original concept. This connection hints at a blend of music, action, and supernatural (Review) elements, as Seria and TERA navigate a world where the power of song, once suppressed, becomes a crucial force against formidable "Great Ghosts" and the world controlled by MiucS.