Columbia subject headings:
Lyricists--Germany.
Polyphonic lieder--History and criticism.
Songs, German--History--17th century.
Songs, German--History--18th century.
Harvard subject headings:
Songs, German--17th century--Congresses.
Songs, German--18th century--Congresses.
Vocal music--17th century--Congresses.
Vocal music--18th century--Congresses.
Princeton subject headings:
Songs, German--17th century--Congresses.
Songs, German--18th century--Congresses.
Vocal music--17th century--Congresses.
Vocal music--18th century--Congresses.