Columbia subject headings:
Communism and music.
Rote Fahne.
Harvard subject headings:
Communism and music.
Music--20th century--Political aspects--Germany.
Music--Germany--20th century--History and criticism
Musical criticism--Germany.
Rote Fahne.
Working class--Germany--Songs and music--History and criticism.
Princeton subject headings:
Communism and music.
Music--20th century--Political aspects--Germany.
Music--Germany--20th century--History and criticism.
Musical criticism--Germany.
Rote Fahne.
Working class--Germany--Songs and music--History and criticism.