RIPM (Le Répertoire International de la Presse Musicale) is widely regarded as the most comprehensive resource offering electronic access to music periodicals from the early Romantic era to the twentieth century. Founded in 1980 by H. Robert Cohen, RIPM is the youngest of the so-called ‘4 R's of International Music Research’; its partner initiatives include RISM (Répertoire International des Sources Musicales), RILM (Répertoire International de Littérature Musicale), and RIdIM (Répertoire International d'Iconographie Musicale). Cohen's ambitious project was notably visionary in its use of technology: not only did it use computing from the start (beginning with DOS-based indexing systems), but it was also the first of the 4 R's to explore full text searching. RIPM seeks to address ‘two main problems that have prevented these [historic music] journals from being systematically collected and examined: (1) the limited number of libraries possessing the journals, and (2) the difficulty encountered when one attempts to locate specific information within an available source’. The project has thus focused on collection building, curation, indexing and accessibility. This international cooperative's accomplishments are impressive: as of July 2020, the database contains 527 music periodicals, 430 available in full text complete runs, totalling 996,000 annotated records and 1.47 million full-text pages of music periodicals.