By Bob Cannon
Updated December 04, 1998 at 05:00 AM EST

As long as gorgeous-voiced stars like Placido Domingo and Sarah Brightman stick to traditional fare like ”Deck the Halls” and European carols, all is bright on A Gala Christmas in Vienna. But when Domingo bellows over Trevor Horn’s bombastic ”The Closing of the Year,” and Brightman attempts to rock on ”Santa Claus Is Coming to Town,” they’re just schlockin’ around the Christmas tree. C+