Columbia subject headings:
Dance music--Austria--History--19th century--Congresses.
Dance--Austria--History--19th century--Congresses.
Harvard subject headings:
Dance music--Austria--History--19th century--Congresses.
Dance--Austria--History--19th century--Congresses.
Princeton subject headings:
Dance music--Austria--History--19th century--Congresses.
Dance--Austria--History--19th century--Congresses.