December 2020 Stats:
RILM Abstracts
1,370,105 records
RILM Abstracts with Full Text
383,047 full-text records
RILM Music Encyclopedias
311,064 entries
Index to Printed Music
579,329 records
1494 posts
Index to Printed Music


Before RILM assumed ownership of IPM in 2018, it was owned by the James Adrian Music Company, which was founded in 2000 by George R. Hill. George Hill had already been working on IPM for many years before this, and he continued to devote himself to IPM’s development until 2018. IPM includes the complete contents of Collected Editions, Historical Series & Sets & Monuments of Music: A Bibliography, by George R. Hill and Norris L. Stephens (Berkeley: Fallen Leaf Press, 1997), which, in turn, was based upon Anna H. Heyer’s Historical Sets, Collected Editions, and Monuments of Music: A Guide to Their Contents (American Library Association, 1957–1980).