1799 compositions

piano sonata written by Beethoven

Theresienmesse (H. XXII/12) (also known in English as the " 'Maria Theresa' Mass") is a mass in B-flat major written by Joseph Haydn and named after Maria Theresa of the Two Sicilies, empress consort of Francis II. The empress herself was the soprano soloist at private performances of both The Creation and The Seasons in May 1801 at the Viennese Court. The title does not appear on the autograph score, which is labeled simply with the Latin word "Missa".