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
Warsaw Chamber Opera Church. The theater building has been entered into the register of monuments of the city of Warsaw. The repertoire of the Warsaw Chamber Opera presents a large number of diverse musical styles and forms of works: from medieval mystery plays to the operas of the early and late Baroque opera, classic eighteenth-century pantomime, opera by Rossini, Donizetti, as well as works by contemporary composers. Warsaw Chamber Opera is known for its Mozart Festival, organized every year since 1991. Its repertoire includes all stage works of Wolfgang Amadeus Mozart. It also organizes a festival for Gioacchino Rossini and Claudio Monteverdi and