@mandmandam 4d
That might seem plausible after reading just this article, but if you look at this video [0] you can see the way it was reconstructed, and hear it being played.

It strikes me as unnecessarily dismissive to insist that hyenas gnawed a perfect pentatonic flute; that really does just seem like some kind of weird jealousy... Especially when we have other examples of pentatonic bone flutes tens of thousands of years old.

0 - https://www.youtube.com/watch?v=sHy9FOblt7Y