From Christmas to Whitsuntide and from the Annunciation to the Assumption, the incomparable splendours of the Basilica di San Marco della serenissima republica di Venetia were applied to the great feasts of the liturgical year. Music formed the lion’s share of these and had almost a duty to be unique, filled with marvels and splendid: it became the very image of the golden dome under which it echoed. The Feast of the Trinity came to acquire a greater importance at that time and thereby gained a musical embodiment of the highest level.