- ASCAP
(American Society of Composers, Authors and Publishers)
Provides a database searchable by titles, writers, publishers and performers of millions of performed works in the ASCAP repertory.
- BMI
- Broadcast Music Inc.
Provides a searchable database of who owns 7.5 million song titles.
- Public Domain Music
Searchable list of music in the public domain as well as information about intellectual property with respect to musical works. There are many more sites you might want to explore using public domain music as your search term.
- United States Copyright Office
Official source of copyright law information, including forms and procedures for registering musical works for copyright protection.