Répertoire international de la presse musicale (Retrospective Index to Music Periodicals, Internationales Repertorium der Musikzeitungen), commonly known as RIPM, provides access to music periodical literature published between 1750 and 1966 through an annotated index, RIPM Retrospective Index to Music Periodicals, and two full-text publication series, RIPM Retrospective Index to Music Periodicals with Full Text and RIPM Preservation Series. RIPM also provides access to full-text jazz publications from 1914 to the 2000s through RIPM Jazz Periodicals. Organization Founded in 1980 by H. Robert Cohen with the collaboration of Marcello Conati, Elvidio Surian, and Christoph-Helmut Mahling, RIPM is one of the four Répertoires (or "R" projects) established by the International Musicological Society (IMS) and the International Association of Music Libraries, Archives, and Documentation Centres (IAML); these include Le Répertoire international des sources musicales (RISM), Le Répertoire international de littérature musicale (RILM), and Le Répertoire international d’iconographie musicale (RIdIM). RIPM was established by these societies to address two problems: (1) the limited availability of the journals themselves, as most are found in very few libraries and in incomplete runs and/or poor physical condition, and (2) the difficulty in accessing content in a journal once a copy has been located. RIPM profits from a network of scholars, librarians, and archivists in more than 20 countries and maintains an editorial headquarters in Baltimore, Maryland (the RIPM International Center). To collect and complete runs of journals, RIPM works with a network of partner and participating libraries in the United States and Europe. With only rare exceptions, RIPM makes available complete runs of music journals, many of which represent the only complete copy available anywhere. The RIPM and RILM Collaboration Together RIPM and RILM provide access to two hundred and fifty years of music periodical literature and are designed to complement each other chronologically. Publications The RIPM Retrospective Index to Music Periodicals began as a print publication in 1988. Print publication of the Retrospective Index ceased in 2016, with 318 volumes published, but continues to be published in an online database. The original three-part publications — consisting of annotated tables of contents, keyword-in-context/author indexes, and introductory studies — generated much of the content of the now-online Retrospective Index to Music Periodicals. As of March 2022, 335 music journals have ben indexed with over 1.03 million annotated citations. All RIPM indexing is done in the language of the original journal. RIPM Retrospective Index to Music Periodicals with Full