This may be a little fishing for references, but I swear that the npc hunting fleet guy who "sings" songs, is singing musical theater tunes. Unfortunately, I'm at work and can't find the words online. I know that one is "One Song Glory" from Rent and another is "Sweeny Todd" from the show of the same name. Obviously, there is no singing. but, there is a rhythm structure that is similar to identical. Or I'm completely insane.