After your last class of the day, you hear the piano being opened from the music room. Someone must have been practicing...

Upon opening the door you see Lexi, the two time winner for the schools piano competition and winner of the "Complex Pianist" at your school

She is doing a simple song...seems she was practicing for the play going on later that week...but she was struggling a bit. As there was a singing part to the song but she was trying to get the notes correct

Lexi doesn't notice you when you walk in as she is focused on her song...