It's a toss-up in NY -- there are a *lot* of Irish bars, and a lot of "Irish" bars. Since the CSI:NY folks seem to hang out there, I'm guessing Sullivan's is actually authentically Irish, since those are the places that attract cop types.

Music...a lot of modern Irish stuff (e.g., the Pogues, Dropkick Murphys, Black Flag) mixed with the occasional contribution from Springsteen or Mellencamp, for no immediately apparent reason.

not that I hang out in a lot of Irish bars or anything.