Columbia subject headings:
Aleatory music--History and criticism.
Feldman, Morton, 1926-1987--Manuscripts--Facsimiles.
Violin and piano music--Scores.
Harvard subject headings:
Aleatory music.
Violin and piano music--Scores.
Princeton subject headings:
Aleatory music--History and criticism.
Aleatory music.
Scores.
Violin and piano music--Scores.