freegal music — Free downloads. Delivers music in MP3 format, with a click on both PCs & Macs.
Naxos Music Library — An online listening music library containing over 85,000 streaming audio tracks of classical, jazz, world, and folk music. Sound quality near CD. While listening online, you can read notes on the works being played or biographies of composers. Up to 5 users at a time.
Naxos Music Library Jazz — Offers a mixed selection of jazz legends and contemporary jazz. Recordings of over 32,000 artists are represented. Up to 3 users at a time.