Columbia subject headings:
Music--Germany--Schleswig (Germany and Denmark)--18th century--History and criticism.
Music--Germany--Schleswig (Germany and Denmark)--19th century--History and criticism.
Harvard subject headings:
Music--Germany--Schleswig (Germany and Denmark)--18th century--History and criticism.
Music--Germany--Schleswig (Germany and Denmark)--19th century--History and criticism.
Princeton subject headings:
Music--Germany--Schleswig--18th century--History and criticism.
Music--Germany--Schleswig--19th century--History and criticism.