The Louisville Ballet’s first performance of the 2019-20 season features truth in advertising. Hanna, “The Merry Widow,” is indeed happy (it helps that she is rich and beautiful), and her husband is deceased. But it would be a dull ballet if that’s all there was to it. There’re many twists and turns; after all, this is a dance based on an operetta set in early 20th century Paris. Choreographer Ronald Hynd created the ballet for The Australian Ballet in 1975, and this is the first time it will be performed in Louisville. Former Louisville Ballet Artistic Director Bruce Simpson is dancing as the Baron, his first time on the stage in 20 years. The musical score will be performed by the Louisville Orchestra. —Jo Anne Triplett