Louis de Bernieres evoked the romance of the mandolin when he plucked at a million heart strings with his novel, Captain Corelli's Mandolin. The mandolin is often dismissed as a novelty, but Captain Corelli was a virtuoso who wanted to compose concertos. In Naples at the turn of the centurythe real-life Raffaele Calace wrote over 170 mandolin compositions. Alison Stephens journeys to the workshop where the grandson of the great man still makes mandolins for export. Producer Charlie Taylor