It’s such a comforting pleasure just to hear the Oak Ridge Boys’ familiar harmonies that it’s tempting to forgive them anything. That’s tough when the kickoff track of their first straight-ahead country album in seven years is soccer-dad fluff like “Hard to Be Cool,” a song that suggests the time is overdue for a moratorium on country songs about minivans. Front Row Seats improves from there, with the Boys’ indelible voices essaying a set of reasonably solid tunes that blend tradition with at least a hint of modernity.