Brenda's Piano Studio - Online Recital
Musopen - Free Public Domain Classical Music
Sheet music and audio in the public domain. You can hear a random piece or listen to their online radio station too.
Purple Planet Music
Incidental music licensed CC-By
The Educational Audio & Video Library | Open Culture
Collection of audio and video for education. Includes audio books, podcasts, music, selected YouTube videos, and university content
Free Music Archive
Over 10,000 free mp3s for download, all CC licensed
Setting the Mood — Top Tips for Adding Stock Music to Your E-Learning | E-Learning Uncovered
Practical ideas for adding a little stock music to e-learning. It's probably not a good idea to add it behind narration, but a little bit of music might be beneficial in some situations. It can reinforce or shape the emotional feel of a moment in learning.
SoundCloud - Creative Commons
Creative commons licensed audio tracks