director of the Italian opera in early 1774. On 10 October 1775 Salieri married Therese Helferstorfer, the daughter of a recently deceased financier and official of the court treasury. Sacred music was not a high priority for the composer during this stage of his career, but he did compose an Alleluia for chorus and orchestra in 1774. During the next three years, Salieri was primarily concerned with rehearsing and conducting the Italian opera company in Vienna and with teaching. His three complete operas written during this time show the development of his compositional skills, but included no great success, either commercially or artistically. His most important compositions during this period were a symphony in D major, performed in the summer of 1776, and the oratorio La Passione di Gesù Cristo with a text by Metastasio, performed during Advent of 1776. After the financial collapse of the Italian opera company in 1777 due to financial mismanagement, Joseph II decided to end the performance of Italian opera, French-spoken drama, and ballet. Instead, the two court-owned theaters would be reopened under new management, and partly subsidized by the Imperial Court, as a new National Theater. The re-launched theaters would promote German-language plays and musical productions that reflected Austrian (or as Joseph II would have said) German values, traditions, and outlook. The Italian opera buffa company was therefore replaced by a German-language Singspiel troupe. Joseph and his supporters of Imperial reform wanted to encourage pan-national pride that would unite his multi-lingual and ethnic subjects under one common language and hoped to save a considerable amount of money in the process. Beginning in 1778 the Emperor wished to have new works, in German, composed by his own subjects and brought on the stage with clear Imperial support. This in effect left Salieri's role as assistant court composer in a much-reduced position. Salieri also had never truly mastered the German language, and he now felt no longer competent to continue as an assistant opera director. A further blow to his career was when the spoken drama and musical Singspiel were placed on an equal footing. For the young composer, there would be few, if any, new compositional commissions to receive from the court. Salieri was left with few financial options and he began casting about for new opportunities. Italian tour (1778–1780) In 1778 Gluck turned down an offer to compose the inaugural opera for La Scala