If the question is "Is what we call folk music a logical consequence of our life form?", the clear answer is no. Even within our species in our universe, musical cultures and tastes vary considerably. More surprisingly, they change so quickly that the notion of "traditional music" is a fiction in itself: it is reinvented every decade or so. More surprisingly still, this also applies to cultures that do not seem to have changed in their material or economical bases at all.