Columbia subject headings:
Metastasio, Pietro, 1698-1782--Criticism and interpretation.
Harvard subject headings:
Metastasio, Pietro, 1698-1782--Criticism and interpretation.
Music--18th century--History and criticism
Princeton subject headings:
Metastasio, Pietro, 1698-1782--Criticism and interpretation.
Metastasio, Pietro, 1698-1782--Musical settings.
Music--18th century--History and criticism.