Columbia subject headings:
Harvard subject headings:
Conservatories of music--Italy--Naples.
Music--Italy--Bio-bibliography.
Music--Italy--History and criticism
Music--Italy--Naples--History and criticism.
Opera--Italy--Naples.
Princeton subject headings:
Conservatories of music--Italy--Naples.
Music--Italy--Bio-bibliography.
Music--Italy--History and criticism.
Music--Italy--Naples.
Opera--Italy--Naples.