Columbia subject headings:
Harvard subject headings:
Internationale Ferienkurse für Neue Musik.
Music festivals--Germany--Darmstadt.
Music--20th century--History and criticism
Music--Germany--Darmstadt--20th century--History and criticism.
Princeton subject headings:
Internationale Ferienkurse für Neue Musik.
Music festivals--Germany--Darmstadt.
Music--20th century--History and criticism--Congresses.