Columbia subject headings:
Music--History and criticism--Congresses.
Musical instruments in art--Congresses.
Musical instruments--Congresses.
Musical instruments--History--Congresses.
Harvard subject headings:
Music--History and criticism--Congresses
Musical instruments in art--Congresses.
Musical instruments--Congresses.
Musical instruments--History--Congresses.
Princeton subject headings:
Musical instruments--Congresses.