SoundCloud is a website that allows you to stream and download music for free. SoundCloud content is sometimes loaded by professional artists, while others are shared by independent musicians.
Not all music on SoundCloud can be downloaded, and some require that you like a Facebook page to get the file. However, music that can be downloaded instantly and without an account has a FREE DOWNLOAD button next to them.
One way to find free music on SoundCloud is to look for music labeled as free, but others can also be free, and are not labeled as such.