Ms. Southwell, who plays the role of Flora in LA Opera’s production of “La Traviata,” takes us through a scene-by-scene description of the opera. In it, we learn that high-flying Violetta, performed by Adela Zaharia, fills her nights with crazy parties and her days with rich admirers who reward her with anything she wants. Enter a nice man declaring his true love for her, Violetta must face a heart-breaking sacrifice, one that will surely doom her last chance at happiness.