*Music does not play constantly. It triggers dynamically depending on what's going on in the game.
I think this is what will make this game really feel much more natural than Oblivion and make the music really complement the gameplay, rather than just having the music constantly going.
It also helps flesh out the music and will hopefully make it less likely you will hear the same music over and over again, which got a little old in Oblivion.
The music is also sounding really beautiful and epic from what I've heard, so I'm really looking forward to just wandering around and getting fully immersed in the sights AND sounds of the game.