Other online reference and multimedia databases you might find useful.
A scholarly resource of recordings, including CD quality audio, liner notes and essays from New World, Composers Recordings and other important labels. The basis for the current collection is the diverse catalog of New World Records.
Naxos Music Library is the most comprehensive collection of classical music available online. It includes the complete Naxos and Marco Polo catalogues of over 170,000 tracks, including Classical music, Jazz, World, Folk and Chinese music.
Music Online: Listening is a comprehensive audio collection providing coverage in breadth and depth across all the key musical genres: American, Classical, Smithsonian Global Sound, Jazz, Popular, and Contemporary World. Browsing can be done by collections or subjects, and searching can be done in each individual collection or through multiple collections at once.