IMSLP / Petrucci Music Library

IMSLP, the International Music Score Library Project — also known as the Petrucci Music Library, after Renaissance music printer Ottaviano Petrucci — is the world's largest free public-domain sheet music archive. Founded in 2006, it now holds over 250,000 musical works, more than 837,000 scores, and over 92,000 recordings, contributed by upwards of 27,000 composers and 2,000 performers. Free and open to musicians, scholars, and music lovers worldwide, IMSLP serves more than 4 million unique users a month, making it an essential resource for performers, educators, and researchers everywhere.

Petrucci Music Foundation (PMF)

The Petrucci Music Foundation is IMSLP's philanthropic arm, dedicated to preserving and expanding free access to the world's musical heritage. PMF advances this mission through three core initiatives: the Hidden Voices Initiative, spotlighting women and underrepresented composers; the New Editions Project, producing newly prepared critical editions sourced from primary manuscripts; and the Orchestral Materials Access Project. This October 7th benefit concert marks PMF's inaugural in-person fundraising event, with proceeds supporting the Foundation's broader work across these initiatives.