In discussing the process with the actors, I made it clear to them that they could improvise but that the sum total of their improvisation needed to impart certain plot points, and schematic material.
'Charm' - which means the power to effect work without employing brute force - is indispensable to women. Charm is a woman's strength just as strength is a man's charm.
German is more familiar now since I live part of the year in Rome and part in the German part of Switzerland. But it's not difficult to sing in German; it's difficult to feel in German. This takes time. It's a culture.