Royal Swedish Opera Daniel Auber and "Un ballo in maschera" by Verdi.) Following the assassination, the opera house was closed until 1 November 1792, when it was opened again, which by some was considered shocking. The son of Gustav III, King Gustav IV Adolf of Sweden, did not like the Opera, possibly because of the murder of his father, and disliked the fact that the scene of his father's murder was used as a place of amusement and leisure, and when a frivolous play was performed for his queen Frederica of Baden in 1806, he decided to close it down. It remained closed
Giuseppe Verdi whether he preferred "Aida" or "Don Carlos", Verdi replied that "Aida" had "more bite and (if you'll forgive the word), more "theatricality"." During the rehearsals for the Naples production of "Aida" Verdi amused himself by writing his only string quartet, a sprightly work which shows in its last movement that he had not lost the skill for fugue-writing that he had learned with Lavigna. Verdi's three last major works continued to show new development in conveying drama and emotion. The first to appear, in 1874 was his Requiem, scored for operatic forces but by no means an "opera in ecclesiastical