The people who serenade nightingales

This week marks the 90th anniversary of the duet between cellist Beatrice Harrison and a nightingale that arrived in her garden whenever she played. Now, 90 years on, nightingale duets are once again taking place across the country.

The BBC's arts correspondent David Sillito went to Green Farm in Kent to meet the singer Sam Lee to see if the nightingales could be persuaded to sing along to folk songs and polyphonic overtones on a wet and chilly spring night.

(Image: Beatrice Harrison performing with a nightingale. Credit: BBC)