Music Online Reference contains the following reference collections:
African American Music Reference
Full text from major reference works; personal narratives from oral histories and interviews; manuscripts, songsheets, lyrics, discography data, and other text sources
Classical Music Reference Library
Biographical information on major composers and artists; score and lyric excerpts, plus musical and notational terms; photographs and images of people, instruments, and ensembles
Classical Scores Library
The Garland Encyclopedia of World Music Online
Devoted to music research of all the world's peoples.