Columbia subject headings:
Manuscripts, Latin (Medieval and modern)
Music--Manuscripts--Facsimiles.
Music--Manuscripts--Soviet Union.
Musical notation.
Neumes.
Paleography, Musical.
Harvard subject headings:
Antiphonaries.
Music, Byzantine.
Music--500-1400--History and criticism
Music--Manuscripts--Facsimiles
Musical notation.
Neumes.
Princeton subject headings:
Facsimiles.
Manuscripts, Latin (Medieval and modern)--Soviet Union--Facsimiles.
Music--Manuscripts--Facsimiles.
Paleography, Musical.