Columbia subject headings:
Berio, Luciano, 1925-2003--Manuscripts--Facsimiles.
Music--Manuscripts--Facsimiles.
Operas--Scores.
Harvard subject headings:
Berio, Luciano, 1925-2003--Manuscripts--Facsimiles.
Electronic music.
Music--Manuscripts--Facsimiles
Operas--Scores
Princeton subject headings:
Operas--Scores.
Operas.
Scores.