Genre
Manuscripts
954
Facsimiles
905
Scores
503
Catalogs
368
Notated music
307
Bibliographies
173
Bibliography
172
Sources
90
Piano music
82
Correspondence
74
Personal correspondence
72
Songs
70
Exhibition catalogs
46
Exhibitions
44
Parts (Music)
44
Symphonies
44
History
43
Concertos
40
Operas
38
Indexes
34
Scores and parts
32
Cantatas
30
Musical settings
30
Sonatas (Piano)
29
personal correspondence
29
Criticism, interpretation, etc
27
Suites
26
Records and correspondence
24
Early works to 1800
23
Excerpts
23
Gregorian chants
23
Chants
22
Specimens
21
Congresses
20
Musical sketches
19
Periodicals
19
Rare books
19
Illustrated works
18
Part songs
18
Sonatas
18
Biographies
17
Motets
17
Music
17
Illustrations
16
Vocal scores
16
letters (correspondence)
16
Fiction
15
Pictures
15
Conference papers and proceedings
14
Masses
14
more ...