Columbia subject headings:
Byzantine chants--Instruction and study--Early works to 1800.
Musical notation--Early works to 1800.
Harvard subject headings:
Byzantine chants--Instruction and study--Early works to 1800.
Musical notation--Early works to 1800.
Princeton subject headings:
Byzantine chants--Instruction and study--Early works to 1800.
Musical notation--Early works to 1800.