Columbia subject headings:
Harvard subject headings:
Music festivals--Baltic Sea Region--History--19th century.
Music festivals--Baltic Sea Region--History--20th century.
Music festivals--Europe--History.
Music--Social aspects--Europe--History.
Princeton subject headings:
Music festivals--Baltic Sea Region--History--19th century.
Music festivals--Baltic Sea Region--History--20th century.
Music festivals--Europe--History.
Music--Social aspects--Europe--History.