If your band consists of fiddles, mandolins, and something called a bodhran, and your audience looks like it could hold its own at a soccer hooligan convention, you’d bloody well better be able to use those instruments to mercifully bludgeon that rumbly bunch with a Celtic sonic assault that will leave them pounding on the bar, picking each other up off the Guinness-soaked floor, and screaming for one more song. It also wouldn’t hurt if your combined weight is roughly that of the Canadian women’s hockey team in full gear.