Retrospective Index to Music Periodicals (RIPM) is the largest online collection of rare music periodicals published between 1760 and 1966.
Access to RIPM permits use of RIPM's three principal publications:
- Retrospective Index to Music Periodicals (1760–1966)
- RIPM Online Archive of Music Periodicals (Full Text) (Citations found in the Retrospective Index linked to full-text Online Archive)
- RIPM e-Library of Music Periodicals, a separate full-text collection of journals not found in the Retrospective Index/Online Archive