Columbia subject headings:
Butler, Martin, 1960---Manuscripts--Facsimiles.
Concertos (Chamber orchestra)--Scores.
Music--Manuscripts--Facsimiles.
Harvard subject headings:
Princeton subject headings:
Butler, Martin, 1960---Manuscripts--Facsimiles.
Concertos (Instrumental ensemble)--Scores.
Concertos.
Music--Manuscripts--Facsimiles.
Scores.