(Credit: Groves Artists) The Bayerische Staatsoper has announced a conductor change for its production of “Tristan und Isolde.” The company noted that Slovak conductor Juraj Valčuha has withdrawn from the production and will be replaced by Lothar Koenigs. Koenigs has conducted at the Welsh National Opera, Teatro Real, Royal Opera House, Wiener Staatsoper, Edinburgh Festival, Metropolitan Opera, Staatstheater Stuttgart, La {…}