Synopsis

As the Proms season reaches its midpoint, *Proms Extra* continues its exploration of the festival. Katie Derham is joined by harpist Catrin Finch and singer Julian Ovenden, and this week’s program shines a light on the National Youth Orchestra of Great Britain's performance of Thomas Ades's *Polaris*, the John Wilson Orchestra's vibrant rendition of *Oklahoma!*, and David Owen Norris’s return with his insightful *Chord of the Week*.