I am heading to Boston for the first time in June with 10 guys all in our mid-40s to early 50s. We are staying in the Back Bay area but are open to taking a cab anywhere else in the city. Friday and Saturday nights we would like to take in some of Boston's finest Irish bars and possibly hear some live rock music performed by local groups. Interested in some lively, fun places. Any recommendations would be greatly appreciated. Thank you.