From what I’ve heard so far, it seems like Halo 4’s score consists of some techno, like older Halos. I would love to hear the return of the piano music, especially in Halo 3, as it proved to be such a huge part of the game for others like me who enjoy the music.
I happened to find this a lot better than the original. It’s a piano version of the Halo 4 theme.
I hope piano makes a return in the next Halo installment.