Petroc Trelawny and Amercian soprano Angel Blue present highlights from the final round of BBC Cardiff Singer of the World 2017. Singers from Armenia, England, Scotland, Uzbekistan and Australia perform ariasby composers including Handel, Massenet and Gounod. The winner of this round will join the three previous night's winners in the Grand Final. The international jury will also select a wildcard chosen from across all four rounds to complete the line-up. Providing in-depth analysis of the evening's performances are leading British soprano Joan Rodgers and vocal coach Mary King. The Orchestra of Welsh National Opera is conducted by Tomas Hanus.