"We’ve introduced you to a variety of quality image sites where you can find Creative Commons images, but the Creative Commons license goes far beyond just images. Different types of content are licensed online using Creative Commons— videos, music, and even blog content. You’ll find plenty of it online to share, remix and use commercially. When it comes to Creative Commons music — there are certainly no shortage of websites with audio you can use for any occasion.
With Creative Commons licenses, you do have to be sure to take a careful look at the specific license which will show you exactly how you can use the content that has been provided for free. There’s no better place to learn about the various CC licenses than the official Creative Commons website. "