IMSLP/Petrucci Music Library (Opens in New Tab)Provides access to more than 200,000 music scores free of charge. IMSLP is committed to providing free access to music for everyone and encourages the exchange of musical ideas through online forums.
Sheet Music Consortium (Opens in New Tab)Libraries whose goal is to create an open collection of digitized sheet music. Libraries include: Library of Congress, National Library of Australia, Duke University, Indiana University, John Hopkins University, UCLA, and the University of Maine.
MERLOT Materials: Music (Opens in New Tab)The MERLOT system provides access to curated online learning and support materials and content creation tools, led by an international community of educators, learners and researchers.