(Credit: Ruth Walz) This weekend is all about new productions, a rarely performed work and an acclaimed run of performances in Paris. Here is what we recommend. Viva La Diva – Salzburg Landsteater, Austria Adrian Kelly conducts Stephen Medcalf’s production of the rarely performed work by Donizetti and librettist Gilardoni. The opera stars Anne-Fleur Werner, Raimundas Juzuitis,Hazel McBain, George Humphreys, {…}