Does anyone know a good place to download free background music for games? Do most people just make their own music?

I know about these:

1. https://www.assetstore.unity3d.com/en/#!/apmmusicstore (not free)

2. http://incompetech.com/music/royalty-free/ (free)

3. http://soundimage.org/ (free)

I am making games on my spare time, and I enjoy making them solo and have absolutely no idea about making my own music so I eather buy or find free sounds. I even have some "sound generator" that I clicked generating random sounds until I found something I could use for like shooting or whatever short sound clips I needed.