Ceann Na Caca (Volpe’s Sports Bar, Mar. 18) Have you written this post-St. Patty’s Day show on your calendar yet? If you answered “no,” then you might miss out: the guys in Ceann Na CaCa play Irish music and have an album called Us Drunk Live, which you have to admit is a pretty clever title. What’s more, the band sings songs about pirates and hails from Pittsburgh. So, laddies and lassies, pour yourself a Guinness and get comfy – it’s gonna be a long night.