The thing that’s impressive to me is that it has the holes for controlling pitch. The reconstruction offers some guesses at the temperament, but I imagine there’s a lot of room for error. Presumably there are other instruments even older (it’s likely that the very first instruments would be percussion instruments which, even should they survive, would be difficult to identify as musical instruments tens of thousands of years later.
The first percussion instruments were almost certainly either rocks or sticks banged together. The sticks were presumably used just like claves (https://en.wikipedia.org/wiki/Claves).
