Te Deum laudamus
The great Latin hymn of praise and thanksgiving, performed at Napoleon's coronation Mass by Paisiello on 2 December 1804, at his Italian coronation in Milan on 26 May 1805, and ordered sung in all diocesan churches after each major imperial victory. Napoleon issued formal letters mandating the Te Deum after key battles, and Jean-François Le Sueur composed a solemn setting for the imperial court chapel. The attribution to Nicetas of Remesiana, long standard, was conclusively challenged by Ernst Kähler in 1958 and the hymn is now considered anonymous; its late 4th-century date and Ambrosian stylistic milieu are not in dispute. The text moves from the praise of the heavenly court to intercession for the Church militant, ending with a sustained sequence of psalm verses.