Considering to add music to my youtube videos. But I got into trouble with copyrighted music awhile back. I did some youtube searching and stumbled into this: sounds amazing for an uncopyrighted song Is there music similar to this? Or is there any other nice songs you found that's allowed for youtube videos?
In general, I would say that you got a plethora of songs out there. Just type "epic non-copyrighted music" for example on YouTube and you'll get superb music occasionally. One song I like for a video, which isn't similar to yours though, is:
Try finding artists without a record label, usually these types of artists are more than happy letting people use their songs as long as you link the song back to them.