Choral books

Of the seven volumes two are part of a gradual of the fifteenth-century Roman-Franciscan rite, four make up a complete gradual compiled according to the St. Mark's rite. These carry the date 1565-1570 and the signature of don Vittorino Ventura, canon of San Salvador, to which a kyriale is added.

There are illuminations of rare quality both in the fifteenth-century volumes and in the complete, sixteenth-century gradual. The latter has erasures and rewriting in the text and in places also in the music, probably made between the seventeenth and eighteenth centuries.

Graduale de tempore Venice, 1567

Graduale de sanctis Venice, 15th century