Columbia subject headings:
Operas--Excerpts--Vocal scores with piano.
Operas--Vocal scores with piano.
Harvard subject headings:
Operas--Excerpts--Vocal scores with piano
Operas--Vocal scores with piano
Princeton subject headings:
Arrangements (Music)
Excerpts.
Operas--Excerpts--Vocal scores with piano.
Operas--Vocal scores with piano.
Operas.
Vocal scores.