Genre
- Scores 971 Treffer
- Scores and parts 457 Treffer
- Musical settings 424 Treffer
- Songs and music 421 Treffer
- Juvenile 214 Treffer
- Facsimiles 192 Treffer
- Biography 180 Treffer
- Vocal scores with piano 178 Treffer
- Bibliography 168 Treffer
- Catalogs 121 Treffer
- Periodicals 108 Treffer
- Excerpts, Arranged 91 Treffer
- Texts 91 Treffer
- Music 85 Treffer
- Juvenile sound recordings 83 Treffer
- Excerpts 80 Treffer
- Juvenile literature 79 Treffer
- Studies and exercises 66 Treffer
- Juvenile fiction 62 Treffer
- Congresses 51 Treffer
- Bio-bibliography 46 Treffer
- Dictionaries 46 Treffer
- Drama 46 Treffer
- Manuscripts 44 Treffer
- Parts 43 Treffer
- Interviews 37 Treffer
- Exhibitions 33 Treffer
- Early works to 1800 29 Treffer
- Discography 27 Treffer
- Thematic catalogs 26 Treffer
- Methods 25 Treffer
- Solo with piano 25 Treffer
- Pictorial works 20 Treffer
- Handbooks, manuals, etc 19 Treffer
- Instrumental settings 19 Treffer
- Elementary works 18 Treffer
- Instructive editions 18 Treffer
- Music collections 16 Treffer
- 2-piano scores 15 Treffer
- Directories 15 Treffer
- Encyclopedias 15 Treffer
- Teaching pieces 14 Treffer
- Fiction 12 Treffer
- Indexes 11 Treffer
- Readers 11 Treffer
- Librettos 10 Treffer
- Piano scores 10 Treffer
- 51st Psalm 9 Treffer
- Anecdotes 9 Treffer
- Case studies 8 Treffer mehr …