(Photo: Frank Wartenberg) Last December OperaWire reviewed an impressive production of Vivaldi’s “La Fida Ninfa” at the repertory theatre in Regensburg. In the central role of Morastro was the young German-Spanish soprano Sara-Maria Saalmann, whose performance was dramatically intense, but beautifully sung. Working for a repertory company often means a heavy and varied schedule, yet Saalmann is still keen to {…}