They still go away just like awakening. You'll have to either learn it manually or by finishing endgame and save that character's skillset as an enherjar to learn the hacked skill sets in order to retain them.
I've been skimming through them but I don't see the soundtrack for the non-ablaze versions of the map soundtracks.
EDIT: Nevermind I found it
EDIT2: Wait, no I didn't <_<