Adagio Dazzle, brilliant classical musician and composer, has just lost the battle of the bands at Canterlot High after being betrayed by her best friend Octavia. She gives Octavia one chance to explain herself, but may end up learning--and revealing--far more than she had bargained for.

(Backstory: "Adagio Dazzle" appears to be the name of a new character in Equestria Girls: Rainbow Rocks. All we know about her at this time is her name, though the "Dazzle" part is probably exclusive to the toyline. Even her being female is just a guess. I decided to take a chance and make a whole bunch of undoubtedly incorrect predictions about the plot of Rainbow Rocks, as part of a shameless attempt at creating the very first Adagio fanfic.)