Columbia subject headings:
Music--Manuscripts--Facsimiles.
Operas.
Theater--Italy--Venice--19th century--Chronology.
Harvard subject headings:
Music--Manuscripts--Facsimiles.
Operas
Theater--Italy--Venice--19th century--Chronology.
Princeton subject headings:
Music--Manuscripts--Facsimiles.
Operas--Scores.
Operas.
Scores.
Theater--Italy--Venice--19th century--Chronology.