Columbia subject headings:
Brecher, Gustav, 1879-1940.
Conductors (Music)--Germany--Biography.
National socialism and music.
Opera--Germany--Leipzig--20th century.
Harvard subject headings:
Brecher, Gustav, 1879-1940.
Conductors (Music)--Germany--Biography
National socialism and music.
Opera--Germany--Leipzig--20th century.
Opera--Germany--Leipzig.
Princeton subject headings: