lol, The instruments and guns must have the same holding poses or it is just one of the devs form of a joke.
In my roamings though KotOR's files I saw that those instuments are quest items.
Which leads me to wonder how many other game elements are unused. So far I have learned there was plans for a second LS ending where Carth turns a female DS Reven back to the light on the starforge. Then stay there as it burns in the star. someone noticed there was an unused level in the vulker base and there is pretty much atleast 1 unused file per module some contain several, unfinnished models and I think some unused textures.
sorry went a little off topic. looking forward to the next release of Kotor tool