We’re edging closer to the release of Greg Freeman’s new album Burnover. The Vermont folk-rock king has already delighted us with “Point And Shoot” and “Curtain,” and now we get a third advance single in the form of “Gallic Shrug.” It’s an occasion to bust out one of those words used only by music critics: rollicking. Yet despite the road-trip-ready groove, there’s a deep melancholy streak within this one.