In the days when stone was cut by hand, the workers sang as they performed the hard work of removing stone from the earth and breaking and shaping it. The singing helped them wield their chisels with a steady rhythm to make the work efficient. This local song includes the lyrics: “The fixtures of Osaka, even the castle, are held by stone brought from Kitagi.” The singing stopped when the work was mechanized, and the songs are kept by the local preservation society.