Square Enix has released a 20-minute video with samples of music from Final Fantasy I-VII that will be available in the upcoming Theatrhythm Final Fantasy: Curtain Call. The trailer also features some of the changes within the game and shows off a large collection of the characters who will be available.
Theatrhythm Final Fantasy: Curtain Call will be available in Japan on April 24, 2014. There has been no announcement for the game for release in North America or Europe