Vestas Feuer by Pamina and Papageno in "The Magic Flute"), which has the same key and time signature and was the subject of a set of variations for cello and piano by Beethoven (WoO 46), written 1801. Lockwood also discerns a precedent set by Mozart involving formal structure: an "Introduzione"; i.e. Beethoven's scene forms a separable initial section of an opera having some degree of integrity of both plot and harmonic plan; Lockwood calls the "Introduzione" a "miniplay". Three of Mozart's operas begin with such an "Introduzione": "Don Giovanni", "Così fan tutte", and "The Magic Flute". Beethoven's "Introduzione" has a harmonic structure
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