Columbia subject headings:
Beethoven-Haus (Bonn, Germany)--History--20th century.
Bonn (Germany)--Intellectual life--20th century.
Music--Germany--20th century.
National socialism and music--Germany--Bonn.
National socialism and musicology--Germany--Bonn.
Harvard subject headings:
Beethoven-Haus (Bonn, Germany)--History--20th century.
Bonn (Germany)--Intellectual life--20th century.
Music--Germany--20th century.
National socialism and music--Germany--Bonn.
National socialism and musicology--Germany--Bonn.
Princeton subject headings:
Beethoven-Haus (Bonn, Germany)--History--20th century.
Bonn (Germany)--Intellectual life--20th century.
Music--Germany--20th century.
National socialism and music--Germany--Bonn.
National socialism and musicology--Germany--Bonn.