Columbia subject headings:
Instrumental music--History and criticism--Congresses.
Music--Italy--19th century--Congresses.
Ponchielli, Amilcare, 1834-1886--Congresses.
Harvard subject headings:
Instrumental music--History and criticism--Congresses.
Music--Italy--19th century--Congresses.
Ponchielli, Amilcare, 1834-1886--Congresses.
Ponchielli, Amilcare, 1834-1886--Criticism and interpretation--Congresses.
Princeton subject headings:
Band music--Italy--History and criticism--Congresses.
Ponchielli, Amilcare, 1834-1886--Congresses.