247 Elm St., Somerville
Music is obviously important to the Burrens caretakers, the same folks who run the Skellig in Waltham. The walls are lined with framed posters from Irish music fests, and past the bar, a back room opens up to a raised stage where Somerville superstars keep things hopping. Sure enough, the pub was founded in 1996 by two Irish musicians, Tommy McCarthy and Louise Costello. Customers are encouraged to grab a drink and join in a tune.