Obra: Variations on a theme by Corelli, in the style of Tartini

If the Cadogan Hall’s “Celebrity Recital Series” conjures up unwelcome memories of Jordan’s brief career as a singer, never fear: the Hall has attracted a very different type of famous figure. Hilary Hahn is as unlike Katie Price as could be imagined: small, dark and unassuming, you could pass her in the street without a second glance.