Amazon offers downloads of this Yoga Music MP3 Album for free. (Download the first 17 tracks individually to see this price.) For comparison, Amazon typically charges around 99 cents per track on most albums.
Google Play offers downloads of its August Antenna 15-Track Sampler MP3 Album for free. That's a dollar savings for each track. It includes songs from such artists as Will Butler (pictured), Nicholas Allbrook, and A Giant Dog.