Columbia subject headings:
Harvard subject headings:
German poetry--Middle High German, 1050-1500--History and criticism
Lays--History and criticism.
Music--500-1400--History and criticism
Songs, German (Middle High German)--History and criticism.
Princeton subject headings:
German poetry--Middle High German, 1050-1500--History and criticism.
Lays--History and criticism.
Songs, German (Middle High German)--History and criticism.