The Hebrides Overture: Mendelssohn's melodious cave

Tom Service explores the story behind the very first orchestral tone poem and one of the best-loved pieces in classical music: Mendelssohn's Hebrides Overture. Cave expert Prof Stuart Jeffrey shares his insights into Fingal's cave (which inspired Mendelssohn to write his overture), from its many famous visitors over the years to its extraordinary - and sometimes disconcerting - acoustic.