Wolfgang Amadeus Mozart and the Catholic Church minor (K. 427), written for the Salzburg visit of 1783, the motet "Ave verum corpus" (K. 618), written in Baden in 1791, and the Requiem mass (K. 626), left incomplete at Mozart's death. Research on paper types by Alan Tyson suggests that a number of works long thought to be Salzburg material actually may date from Mozart's late Vienna years. As Tyson notes, this would make sense since Mozart was at the time engaged in a (successful) campaign to be appointed as the designated successor to Leopold Hofmann in the Kapellmeister position at St. Stephen's Cathedral. Wolfgang Amadeus Mozart and
Wolfgang Amadeus Mozart of "Ascanio in Alba" (1771) and "Lucio Silla" (1772). Leopold hoped that these visits would result in a professional appointment for his son, and indeed ruling Archduke Ferdinand contemplated hiring Mozart but owing to his mother Empress Maria Theresa's reluctance to employ "useless people", the matter was dropped and Leopold's hopes were never realized. Toward the end of the journey, Mozart wrote the solo motet "Exsultate, jubilate", K. 165. After finally returning with his father from Italy on 13 March 1773, Mozart was employed as a court musician by the ruler of Salzburg, Prince-Archbishop Hieronymus Colloredo. The composer had a