Columbia subject headings:
Music--Italy--Rome--19th century--History and criticism--Congresses.
Music--Italy--Rome--20th century--History and criticism--Congresses.
Rome (Italy)--Social life and customs--1870-1945--Congresses.
San Martino, Enrico di, 1863-1947--Congresses.
Harvard subject headings:
Music--Italy--Rome--19th century--History and criticism--Congresses.
Music--Italy--Rome--20th century--History and criticism--Congresses.
Rome (Italy)--Social life and customs--1870-1945--Congresses.
San Martino, Enrico di, 1863---Congresses.
Princeton subject headings:
Music--Italy--Rome--19th century--History and criticism--Congresses.
Music--Italy--Rome--20th century--History and criticism--Congresses.
Rome (Italy)--Social life and customs--1870-1945--Congresses.
San Martino, Enrico di, 1863-1947--Congresses.