Hello. My problem is that battle music keeps playing after I completed dawnguard ;/. It's everywhere In whiterun, In tavern even when I absorb dragon soul it keeps playing same music not the special one. Is there a way to fix this?

It would seem an invisible Mudcrab or Slaughterfish is following you... Nasty creatures.

Have you tried getting into any other battles after this? I had this happen once and fixed it by getting into another fight and once the creature/person was dead, the music changed back.