Why did the accordion never catch on in Appalachia? Despite it arriving at about the same time as the mandolin and the banjo, and being wildly popular in other parts of the country, Appalachian folk music didn't take to the accordion like it did with the mandolin and the banjo (and thus with the folk revival being primarily centered on Appalachian folk music, accordions were left out of that trajectory for the most part). Why do you think that was?