Columbia subject headings:
Aleatory music.
Concertos (Cello with chamber orchestra)--Scores.
Concertos (Viola with chamber orchestra)--Scores.
Concertos (Violin with chamber orchestra)--Scores.
Electronic music.
Harvard subject headings:
Aleatory music.
Cello with orchestra--Scores.
Viola with orchestra--Scores.
Violin with orchestra--Scores.
Princeton subject headings: