The four R-projects were founded under the auspices of the International Musicological Society (IMS) and the International Association of Music Libraries, Archives and Documentation Centres (IAML). They provide access to our musical patrimony, namely, the music itself in manuscript and print; writings on music, both historic and contemporary; and depictions of music and music-making.
Répertoire International d’Iconographie Musicale (RIdIM)
Répertoire International de Littérature Musicale (RILM)
Répertoire International de la Presse Musicale (RIPM)
Répertoire International des Sources Musicales (RISM)