While the world’s most powerful men are busy waging wars, two women in the music club delighted with their harmony and artistic sovereignty. One is a living legend of violin playing: Anne-Sophie Mutter. The other is preparing to move into the front row of conductors: Karina Canellakis. At the Salzburg Mozart Week, the Vienna Philharmonic’s tried-and-tested dating zone, there is said to have been a spark between the American and the Austrian orchestra five weeks ago.