Sinatra songs and Twyla Tharp dancing. How could that combination miss? Well, you could say it's a rather safe choice for the adventurous choreographer (who has visited Ol' Blue Eyes' music several times before) or complain about the absence of any real story. Still, what's onstage is irresistible both aurally (Sinatra's vocals are enhanced by live orchestration that makes him sound better than ever) and visually, as Tharp's corps of dancers tears through the Sinatra songbook with exuberance and technical panache.