They're two works that were almost lost forever. Georges Bizet's Symphony in C sat on a shelf at the Paris Conservatory library for 60 years, a long-forgotten homework assignment by the 17-year-old composer. A researcher discovered it in 1933, dusted it off and got it published. And Anton Webern's lovely "In the Summer Breeze" spent some time in a hole in the ground, hidden by Webern himself as Russian troops marched into Vienna in 1945. We'll hear both, from concerts in Switzerland and New York.