We've had to turn off some parts of the new music system because they'd been causing problems with server load.
This means that:
Music tracks may not be automatically selected for you as you move from area to area. But you can still always select a track to play manually from the music player interface.
You may also find that you're not getting new tracks unlocked as a result of this. If you miss out on a once-only quest-specific music track during this time, we will ensure that it is unlocked for you after the problems are fixed, which will hopefully be in the next week.
Please accept our sincerest apologies for the inconvenience.