The Magic Flute also acknowledge an influence of Freemasonry. For detailed discussion of sources see , as well as "Libretto of The Magic Flute". In composing the opera, Mozart evidently kept in mind the skills of the singers intended for the premiere, which included both virtuoso and ordinary comic actors asked to sing for the occasion. Thus, the vocal lines for Papageno—sung by Schikaneder himself—and Monostatos (Johann Joseph Nouseul) are often stated first in the strings so the singer can find his pitch, and are frequently doubled by instruments. In contrast, Mozart's sister-in-law Josepha Hofer, who premiered the role of the Queen of
Vienna State Opera this way, including performances of "Madama Butterfly", "The Magic Flute" and "Don Giovanni". This successful venture brought a new wave of operatic excitement to the many tourists and locals who experienced this cultural event. During daytime the screen displays a replica of the Opera House's façade, as it obstructs a considerable part of the building, along with information about upcoming performances. The Vienna State Opera is particularly open to children: under Holender's direction (he has three children of his own), the opera house has become well known for its children's productions, which are performed in a tent on the roof