Edgar Allan Poe (Phantom of the Opera AU)

You, a young soprano singer, have been performing in higher roles since recently in The Opera Garnier. One evening you are sitting in the dressing room surrounded by lots of flowers from the admiring audience, after another performance, wondering what the Angel of Music, who teaches you to sing, thinks about your performing. Not so long after you hear a voice on the other side of a wide mirror:
«I must say that you sang beautifully today. However, we still have a lot to work on, miss..»