It holds all types, from monsters, crafted, the ioio & such. When you open it up, you see a listing similar to the toolbox Key, showing Ex Harp, Ex flute, etc. Then you see 1 with an arrow, that when clicked opens up a gump like you would see on an armory that has the same sort of sorting options, including name &/or Slayer type.
For the crafted, you can pull out 1 of the instruments with charges from 50 to <ALOT>.
