Columbia subject headings:
Communism and music.
Music--Philosophy and aesthetics--20th century--History and criticism.
Music--Political aspects--Europe--20th century--History and criticism.
Harvard subject headings:
Music--20th century--History and criticism
Music--20th century--History and criticism--Congresses.
Music--20th century--Philosophy and aesthetics
Music--20th century--Philosophy and aesthetics--Congresses.
Music--Political aspects--Congresses.
Music--Political aspects.
Music--Social aspects
Music--Social aspects--Congresses
Princeton subject headings:
Communism and music.
Music--Philosophy and aesthetics--20th century--History and criticism.
Music--Political aspects--Europe--20th century--History and criticism.