Columbia subject headings:
Orchestral music--History and criticism--Congresses.
Symphonies--Analysis, appreciation--Congresses.
Symphony--Congresses.
Harvard subject headings:
Orchestral music--History and criticism--Congresses.
Symphonies--Analysis, appreciation--Congresses.
Symphony--Congresses.
Princeton subject headings:
Orchestral music--History and criticism--Congresses.
Symphonies--Analysis, appreciation--Congresses.
Symphony--Congresses.