RISM Series A/II: Music Manuscripts after 1600 is an international, annotated bibliography, which aims to document the world's musical sources of manuscripts or printed music, works on music theory, and libretti. RISM is the most comprehensive annotated index and guide to music manuscripts produced after 1600 containing 585,559 records by over 20,500 composers from manuscripts found in over 750 libraries and archives in 31 countries. As of August 2012 RISM is no longer pointing to the EBSCO edition but is using the freely available edition.