The ability to change Mount Music instead of just switching it of

[Blackcanary]

My thoughts on that:

1) Seeing how difficult it was for them to give us the jukebox for the house a feature like this seems to be very difficult
2) Turn the game music off, your favorite music on - done! Thats how I do it, so no, I dont really need that feature. As much as I love the music in the game... this way I can also listen to other songs
3) The main reason I would kinda dislike this feature: One huge motivation for getting the primal/special mounts is the music they're playing. If any mount could just play any music (or even a bigger variety) that would get lost (at least a bit)

I'm sorry but the music the primal mounts play suck.
Playing my own music and then changing it for cut scene's is not really great since it completely takes you out of the world.
Unless they stated it was difficult. I filling it wasn't. Seems like the main reason it took time to get was because it wasn't a major priority.