Northern Ireland would appear an unlikely location to give birth to a vaudeville-obsessed bohemian singer/poet, but try telling that to Lisburn (near Belfast) native Peter Wilson, better known by his stage name Duke Special. The self-proclaimed creator of"hobo chic" — a reference both to his distinctive dress style and his unusually refined spin on traditional music hall and vaudeville forms — cuts a striking figure on-stage, often performing alone with only his piano and old, squeaky...