The Sound files? Or the Music files?
My theory on how it would work is this... you would need to duplicate the animations used. Create new entries with new IDs/Names. Insert new IDs into Sound_Animation bin. Create a new sound pool for animation events I believe these were ingame.met/lug and you can attach any sound to any animation you want. Now if you edit CAppearanceDef I think you can add per type linked inside Cweapondef so it would be swing (whatever) -> call animation -> call sound. Then you could use sounds for almost every interaction with the weapon even blocks/rolls.
But I haven't messed with Fable in months so I'm kinda fuzzy.