I'm a firm believer that music charms the soul and when we're talking about some of the best fan-made music, Materia Collective should be something you all should know about. Materia Collective is a group of musicians that come together to make video game inspired music. Whether it's covers of the original music or remixes, these folks know what they're doing. They also have a wide range of musicians making music for them. I've heard everything from full orchestral arrangements to metal covers and even electronic pieces.
Now let me tell you that I am a little biased as one of my favorite people in the world happens to be a musician with the Materia Collective. But outside of that, they are still a phenomenal group of musicians that you all should be aware of. If you want to hear more of what they have to offer, go check out their Bandcamp page.