Scene: Norwich, England. “Disaster was imminent: The bride was due to arrive at any moment and the pianist called to say he wasn’t going to make it to the wedding in time.” (Stuck in London traffic.) So “the groom hit the panic button – with stupendous results.” It happened that Bramwell Tovey, the Vancouver Symphony’s music director, was on the way into town for a gig. He got a call from a colleague on the scene, drove right to the wedding hall, and …