Columbia subject headings:
Manuscripts--Portugal--Facsimiles.
Music--Manuscripts.
Part songs, Portuguese.
Songs, Portuguese.
Harvard subject headings:
Manuscripts, Portuguese--Facsimiles.
Music--Manuscripts--Facsimiles
Music--Portugal--500-1400.
Part songs, Portuguese.
Songs, Portuguese.
Princeton subject headings:
Manuscripts--Portugal--Facsimiles.
Music--Manuscripts.
Part songs, Portuguese.
Part songs.
Songs, Portuguese.
Songs.