The sun’s two hours down over the horizon. A fire roars at the giant hearth below the vaulted ceiling in the music hall beside O’Hurley’s General Store as guests begin to take their seats. From the front of the room emerges the first lonely strains of a hammer dulcimer. The musicians trickle in and unpack their guitars and banjos and flutes and ready them to play this Thursday like every uninterrupted one for the last 34 years. The guests settle in. A hush descends. “The Rakes of Kildare” will soon begin.