Upon Gassmann's death on 21 January, most likely due to complications from an accident with a carriage some years earlier, Salieri succeeded him as assistant 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.