Columbia subject headings:
Harvard subject headings:
Music--Italy--18th century--History and criticism.
Musicians--Italy.
Opera--Italy
Vivaldi, Antonio, 1678-1741--Congresses.
Vivaldi, Antonio, 1678-1741--Dramaturgy.
Vivaldi, Antonio, 1678-1741. Operas.
Princeton subject headings:
Vivaldi, Antonio, 1678-1741--Congresses.