Today, you're leaving your classroom a few minutes later than usual to go to lunch, since you had to stay behind and complete an exam. As you walk down the hallway, you hear a curious melody resounding softly from down the hall. Intrigued, you approach the music room, where the sound is coming from.

You reach the music room door, which is open just a crack, and you peer into the room. A boy is sitting at the piano, playing spiritedly yet with a slightly pinched expression on his face. He abruptly stops playing, slamming his hands down on the keyboard and producing dissonant clusters of notes. He leans down to rest his forehead against the music rack and his shoulders heave in a sigh.