(Photo: Maria Laura Antonelli/AGF) This summer, Spoleto’s Festival of the Two Worlds, now in its 62nd year, premiered “Proserpine” a new opera by the Italian composer, Silvia Colasanti. The work is a rendering of a well-known Greek myth, in which Proserpine is abducted by Pluto and taken down into the Underworld. Over the centuries it has had many retellings and {…}