A classic opera is given a brand-new interpretation. Since it first premiered in 1853, Verdi's famed opera "La Traviata" has been in constant rotation among opera companies the world over. In this sweeping production, Marie McLaughlin stars as the ill-fated courtesan Violetta. She's in love with Alfredo, whose parents don't approve. It has what every great opera has: astounding arias and doomed lovers. The London Philharmonic Orchestra provides the lush score. If you only see one opera, see "La Traviata."