I agree with Arcubalis, those mp3 tracks shouldn't be listered anywhere other than the album info.
There is also a 13th track on the bluray in a separate container, titled "I BEAT TITAN!!" and it is this video:
https://www.youtube.com/watch?v=fmBU8eUWREU. It's in the Extras menu labeled as a MOVIE: I BEAT TITAN!!