We have many folk songs in Japan, but I don’t know much about them. I can remember only one folk song. It’s a song from my hometown. My hometown is famous for sake, a Japanese alcoholic beverage, and we have a song about making it. Making sake requires power and good cooperation, so the people who are making the sake have to cooperate by singing the song. This is the origin of the folk song. The song helps our job and the quality of the sake. This is interesting, isn’t it?