I don’t think I’m alone when I say that when I play WoW I prefer to have something listen to as I play.
In previous expansions I have played the game without music or sound, choosing to listen to music or podcasts on my computer. Once you heard one grand sweeping medieval score, you heard them all.
The music department went all out for this expansion, using strings and chimes and other more eastern music instruments and styles that I am too much of a noob in music to properly identify.
All I know is two things about the music: The Pandarian inn music blew my mind the first time I heard it going into the Drunken Hozen and I am glad that I bought the soundtrack of this expansion.