I don't like the official theme music for path of fire. Not that it's bad, it's just kinda boring for being the theme music of a major expansion. It's more like ambient game music. So, I made my own. I use this on the character selection screen instead of the official theme music. There's instructions on how to change the game music on the GW2 wiki.
I spliced together music relating to the Path of Fire expansion. It's 3 songs:
I hope you enjoy. (A-net, don't be a spoil-sport)