Columbia subject headings:
Brass septets (Horns (2), trombones (2), trumpets (2), tuba)--Scores.
Chamber music.
Haas, Georg Friedrich--Manuscripts--Facsimiles.
Microtonal music.
Music--Manuscripts--Facsimiles.
Scores.
Harvard subject headings:
Brass septets (Horns (2), trombones (2), trumpets (2), tuba)--Scores.
Chamber music.
Facsimiles
Haas, Georg Friedrich--Manuscripts--Facsimiles.
Microtonal music.
Music--Manuscripts--Facsimiles
Scores.
Princeton subject headings: