Columbia subject headings:
Music theory--History--19th century--Congresses.
Music theory--History--20th century--Congresses.
Music--Psychological aspects--Congresses.
Psychology--Congresses.
Stumpf, Carl, 1848-1936--Congresses.
Harvard subject headings:
Music theory--History--19th century--Congresses.
Music theory--History--20th century--Congresses.
Music--Psychological aspects--Congresses
Psychology--Congresses.
Stumpf, Carl, 1848-1936--Congresses.
Princeton subject headings: