Glimmerglass Festival Out By LIBBY CUDMORE • Special To AllOTSEGO.com COOPERSTOWN – With the curtain on “The Sound of Music” scheduled to rise in just two months, the Glimmerglass Festival has announced it will not host any live performances this summer. “It was our hope this summer to gather at the Festival,” Francesca Zambello, artistic director, said Tuesday, May 5. “But it became clear that, for all our safety, we cannot gather together to perform the beautiful season we had…