So, *still quite early in the game* I got a music box from a little girl with the request I find her mother and father, and that playing the music box would snap him out of the hunt. ...unfortunately, I didn't realize who the father WAS until, well, after I'd killed him. xP I don't want to spoil who it was, (not sure how much of a spoiler that would be,) but anyone actually manage to use the music box at the correct time? Curious as to the effect, but don't really want to make a new character just to try and find out.
It simply stuns them for a short time but speeds up the transformation time.