Petroc Trelawny and American soprano Angel Blue present highlights from the second round of the world's leading opera singing competition. St David's Hall welcomes singers from Italy, Mongolia, Belgium and South Korea as well as home favourite Welsh mezzo Sioned Gwyn Davies. Petroc is joined by Cardiff-born soprano Rosemary Joshua and Cardiff Singer regular, vocal coach Mary King who are on hand to provide expert opinion on the evening's performances. The singers are accompanied by the Orchestra of Welsh National Opera conducted by Tomas Hanus.