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

I have i game almost finished and I just need some good background music (preferably electronic.)

I know about these:

  1. Unity Asset Store - The Best Assets for Game Making
    (not free)
  2. Royalty Free Music
    (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.