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
Swedish House Mafia a month after the group's reunion at Ultra Miami 2018. The Swedish supergroup are said to have inspired many musicians in the EDM genre, most notably fellow Swedish DJs Alesso and Avicii. On April 23, 2018, three days after his death, it was revealed by Tiësto that Swedish House Mafia's Ultra Music reunion inspired Avicii to take up DJing again which saw him through his final weeks until his death on April 20. Swedish House Mafia are also credited with helping house music conquer America in the late 2000s along with the likes of Calvin Harris, Tiësto, and Carl Cox.