Columbia subject headings:
Bruch, Max, 1838-1920--Correspondence.
Composers--Germany--Correspondence.
Harvard subject headings:
Bruch, Max, 1838-1920.
Music--Germany--Koblenz--19th century--History and criticism.
Princeton subject headings:
Bruch, Max, 1838-1920.
Composers--Germany--Biography.
Music--Germany--Koblenz--19th century--History and criticism.