Hello there,
It seems the Traverse Flute, which you can buy at Port-à-Lucine, is not "meant" for short races like Halfling and Gnome, as they are a "Medium" sized weapon, which means these two races (and their subraces, of course) will hold said flute like a two-handed weapon, effectively breaking the way it's supposed to be handled. Furthermore, the @emote 21, used to play pipes, is also broken when using the Traverse flute since the hand holding it remains stuck in the Two-hander stance.
Was the flute made a Medium weapon by lack of option from a technical point or could it be changed into a Small or Tiny one for it to be properly used by smaller races?