I recently moved to the Appalachians and rediscovered this music. My Da grew up in SW VA and we spent some of most summers there. Growing up we heard Irish and Appalacian music played by my parents. The closest university to here even has a degree program in bluegrass.
God then made man. The Italians for their beauty. The French for their cuisine. The Welsh for their voices. The Germans for their cars. And on and on until He looked at what He had created and said, "This is all very well, but no-one is having fun. I'll have to make an Irishman."