At one point, on a dare, Ritchie sings every word of every verse of an Irish folk song called "The Rocky Road to Dublin." The crowd grows. When tourists approach for a photograph, Ritchie puts on his stay-off stare, goes cold.

Some of the songs we used, like one called “Wild Berry”, were a thousand years old. And then we made a contemporary sound to that, but the instruments that we used were still old instruments. It was an enormous narrative that goes into the music.