Genre
Catalogs
120
Criticism, interpretation, etc
85
Bibliography
70
Early works to 1800
53
History
47
Biography
33
Auction catalogs
25
Biographies
23
Diaries
19
Music
17
Bibliographies
16
Early works
16
Manuscripts
15
Sound recordings
15
Electronic books
14
Correspondence
12
Facsimiles
12
Periodicals
12
Engravings
11
Etchings
11
Advertisements
10
Satires (Visual works)
10
Sources
10
Personal correspondence
9
Sonatas
9
Fiction
8
Scores
8
Songs
8
Streaming audio
8
Annotations (Provenance)
7
Excerpts
7
Exhibitions
7
Songs and music
7
Specimens
7
Auction catalogues
6
Catalogues
6
Guidebooks
6
Notated music
6
Trade catalogs
6
Autobiographies
5
Dictionaries
5
Piano music
5
Publishers' advertisements
5
Records and correspondence
5
Academic theses
4
Catalogs and collections
4
Indexes
4
Interviews
4
Musique
4
Oral histories
4
more ...