Frederico Gobbo was a human who lived in the city of Vanezia. He was a not very good musician. He met the Tenth Doctor and Rose Tyler when he went to the Opera House. The Doctor detected there was something not right. The owner, a humanoid man called Magrillo, had found a black box that needed musical energy. The Doctor ordered Frederico to play music to the black box. It exploded as he, Rose and the Doctor escaped. He later discovered that he could now play well. (COMIC: Opera of Doom!)