Columbia subject headings:
Church music--Catholic Church--Instruction and study--Italy--Rome--History--19th century.
Church music--Catholic Church--Instruction and study--Italy--Rome--History--20th century.
De Santi, Angelo, 1847-1922.
Jesuits--Italy--Biography.
Sacred music--Italy--Rome--History.
Harvard subject headings:
Church music--Italy--Catholic Church.
De Santi, Angelo, 1847-1922.
Princeton subject headings:
Church music--Italy--Catholic Church.
De Santi, Angelo, 1847-1922.