Columbia subject headings:
Church music--Orthodox Eastern Church.
Church music--Soviet Union.
Music--Manuscripts--Facsimiles.
Musical notation.
Paleography, Musical.
Paleography, Russian.
Harvard subject headings:
Church music--Orthodox Eastern Church
Church music--Russia.
Church music--Soviet Union.
Music--Manuscripts--Facsimiles
Musical notation.
Paleography, Musical.
Paleography, Russian.
Princeton subject headings:
Church music--Russia.
Music--Manuscripts--Russia--Facsimiles.
Musical notation.
Paleography, Musical.