German tenor Klaus Florian Vogt has the appeal of a period film star – the granite chin, the mane of shoulder-length hair and legs that probably look great in swashbuckler's tights – and there's a sunlit, youthful spirit to his delivery that's entirely suitable for the heroic roles anthologised on Helden: soaring, ambitious, morally certain, with little of the gravitas, doubt and compromise one detects in more mature tenors.