Columbia subject headings:
Composers--Spain--Correspondence.
Irízar y Domenzain, Miguel de, 1635-1684--Correspondence.
Music theory--Spain--History--17th century--Sources.
Music--17th century--History and criticism--Sources.
Harvard subject headings:
Composers--Spain--Correspondence.
Irízar y Domenzain, Miguel de, 1635-1684--Correspondence.
Music--17th century--History and criticism
Princeton subject headings: