Columbia subject headings:
Expatriate musicians--Switzerland--20th century.
Music--20th century--History and criticism.
Music--20th century--Political aspects--Germany.
Music--20th century--Political aspects--Switzerland.
Musicians--Germany--20th century.
National socialism and music.
Harvard subject headings:
Expatriate musicians--Congresses.
Expatriate musicians--Switzerland--Congresses.
Music--20th century--Political aspects--Germany--Congresses.
Music--20th century--Political aspects--Switzerland--Congresses.
Music--Political aspects--Congresses.
Music--Switzerland--20th century--History and criticism--Congresses.
National socialism and music--Congresses.
Princeton subject headings:
Expatriate musicians--Switzerland--20th century.
Music--20th century--History and criticism.
Music--20th century--Political aspects--Germany.
Music--20th century--Political aspects--Switzerland.
Musicians--Germany--20th century.
National socialism and music.