Columbia subject headings:
Music, Greek and Roman--History and criticism--Congresses.
Music--Philosophy and aesthetics--Congresses.
Music--Psychological aspects--Congresses.
Plato--Appreciation--Congresses.
Plato--Songs and music--History and criticism--Congresses.
Harvard subject headings:
Music, Greek and Roman--History and criticism--Congresses.
Music--Philosophy and aesthetics--Congresses
Music--Psychological aspects--Congresses
Plato--Appreciation--Congresses.
Plato--Songs and music--History and criticism--Congresses.
Princeton subject headings:
Music, Greek and Roman--History and criticism--Congresses.
Music--Philosophy and aesthetics--Congresses.
Music--Psychological aspects--Congresses.
Plato--Appreciation--Congresses.
Plato--Songs and music--History and criticism--Congresses.