Columbia subject headings:
Harvard subject headings:
Composers--Germany--Biography
Composers--Germany--Correspondence
Wagner, Richard, 1813-1883--Friends and associates.
Wagner, Richard, 1813-1883. Correspondence.
Wesendonck, Mathilde, 1828-1902--Correspondence.
Wesendonck, Mathilde, 1828-1902.
Princeton subject headings:
Composers--Germany--Biography.
Composers--Germany--Correspondence.
Wagner, Richard, 1813-1883. Correspondence.
Wesendonck, Mathilde, 1828-1902--Correspondence.