Key Resources: 

An extensive bibliography which covers all types and aspects of music. Includes journal articles, books, conference proceedings, reviews, and more.
Provides citations to articles on various topics related to music and the history of music.
Classical scores from both in-copyright and public domain editions. The major composers output is represented, as well as many lesser known composers.
Includes around 20,000 tracks, along with program notes, composer biographies, and images cross-referenced to the recordings.
With over 60,000 articles written by over 6,000 music scholars, this is the authoritative resource for music research. Includes Grove Music Online.