Perhaps you should try some spelling variations:
escuela natural » escuela material, escuela rural, escuela actual
del pianoforte » de pianoforte, der pianoforte, e pianoforte
celebri la » celebri di
natural 6 » natural y, natural 2, natural 3
canto del » cantos del, canto de, cantos de
6 canto » y canto, v canto, el canto
pezzi » pozzi

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi celebri la escuela natural 6 canto del pianoforte.*.