There are many sources for finding manuscript and archival music material, including composer's archives and papers (meant here in the sense of correspondence, sketches, and other unpublished materials). These include, but are not limited to:
- National libraries and archives
- Catalogs like NUCMC and WorldCat
- Printed tools like Resources of American Music History by Krummel
- Grove
- Composer thematic catalogs, bio-bibliographies, and guides to research
See the other boxes on this page for links to some of these tools.