I still feel like the Gamecube AC had the best music. But that could just be nostalgia kicking in.
I think the AC:HHD music is meant not to be too distracting. However, what bothers me the most is that the volume levels of the sounds and music are all way off from each other- I find myself constantly adjusting the clunky volume switch because at one point, it's blaring like sirens. Then at other points, I can barely hear it!
Luckily, they have all the wonderful Totakeke songs to jam to!