Columbia subject headings:
Biblioteca apostolica vaticana. Manuscript--Catalogs.
Music--Manuscripts--Vatican City--Catalogs.
Harvard subject headings:
Biblioteca apostolica vaticana--Catalogs.
Biblioteca apostolica vaticana--Manuscripts--Catalogs.
Manuscripts--Vatican City--Catalogs
Music--500-1400--Manuscripts--Catalogs.
Music--Italy--Rome--Manuscripts--Catalogs.
Music--Manuscripts--Italy--Rome--Catalogs.
Music--Manuscripts--Vatican City--Catalogs.
Princeton subject headings: