[@Caits] 

So Ian is a great example. Ian has an instrument. It has powers, a personality, and it can be converted into melee weapons yes but that's just one of Fidrieon's properties (Ian's flute). There are other kinds of weapons too of course. Ian has a collection of firearms, blades, etc. They are all normal and you're welcome to go wild with that. There are a few other things in essence which are weapons, but not instruments and not normal. You can take a peak at Lazarus CS for an example. Dracul is the piece of equipment you want to look at. So if your character is a musician they will need an instrument; but they can also have weapons beyond just the instrument.