(Credit: Gemma Escribano) This month Ruth Iniesta is set to return to the Teatro de la Zarzuela, where she will sing the role of La duquesa de Medina in “Jugar con Fuego.” The zarzuela by Francisco Asenjo Barbieri, which premiered in 1851, is relatively unknown and for this production, the Madrid theater will present a new production. Throughout the past {…}