Subjects
- Opera[remove]299
- Operas -- Librettos285
- Printed ephemera169
- Opera companies16
- Musical criticism5
- Musicology3
- Theaters3
- Art music2
- Librettos2
- Opera programs2
- Operas2
- Sopranos (Singers)2
- Art and opera1
- Ballet1
- Ballet companies1
- Comedy1
- Drama1
- Drama -- 19th century 1
- Drama -- 20th Century1
- Libraries -- Special collections -- Printed ephemera1