Columbia subject headings:
Music theory--Early works to 1800.
Music theory--History--To 500--Sources.
Music, Greek and Roman--History and criticism--Sources.
Harvard subject headings:
Music, Greek and Roman--Sources.
Music--Philosophy and aesthetics--Early works to 1800.
Princeton subject headings:
Music, Greek and Roman--Sources.
Music--Philosophy and aesthetics--Early works to 1800.