THE SOUND OF MUSIC: Rodgers and Hammerstein’s last show together, first produced in 1959 just before Hammerstein’s death, exhibits all their virtues. And virtues is the right word: this is the ultimate family-values show. In this exemplary Broadway revival, every virtue is firmly in place. Rebecca Luker, following in the hallowed steps of Mary Martin and Julie Andrews, is irresistible as Maria, the governess who brings joy to the seven adorable children of Austrian Captain von Trapp and love to his austere heart. Who could blame R & H for repeating the formula that worked so well in “The King and I”? Besides, it was essentially a true story about the singing family who escaped the Nazis. Everything is sweet and openhearted: the well-chosen cast, the staging by Susan H. Schulman, the songs (especially the title song, “My Favorite Things” and “Do-Re-Mi”) and the lovely wedding scene in the abbey. The show is a gorgeous greeting card to a nicer time. No wonder it’s produced by Hallmark.