Track listings are current
Square Enix has updated their site for Theatrhythm: Final Fantasy: Curtain Call, and it contains all of the currently revealed tracks for the game. If you're so inclined, you can head over to the site now, click on a certain game, and give those tracks a listen.
Some highlights include tracks from Final Fantasy XIV: A Realm Reborn, which is a relatively new reveal, as well as a few tracks from the SaGa series (which will apparently be DLC).
Theatrhythm: Final Fantasy: Curtain Call [Square Enix]