CrossAsia is an interdisciplinary portal and central access point for online information on East and Southeast Asian studies. The portal provides an integrated search of distributed databases (free and subject to licence), access to selected digital collections and an online guide of electronic resources related to East and Southeast Asian studies (OGEA). Access for Max Planck researchers is subject to a local agreement free of charge.

The RISM database references mostly historical music manuscripts, the majority of them originated before 1800. - The original sources are available from the libraries, music archives, and private collections as indicated in the RISM database. These institutions can often be approached for reproductions. - About 700,000 entries (June 2010). -- Die RISM-Datenbank weist hin auf vor allem historische handschriftliche Noten, die Mehrzahl davon entstanden vor 1800. - Die Originale können in den angegebenen Bibliotheken, Musikarchiven oder Privatsammlungen eingesehen werden. Dort können oft auch Reproduktionen herstellen gelassen werden. - Ca. 700.000 Einträge (Juni 2010).