The composer discovering the secrets of birdsong

Birdsong is the inspiration for composer Peter Cowdrey's music.

As a child he tried to transcribe birdsong but was frustrated by the speed and complexity of the songs of everyday garden birds.

Now, using a spectrograph to visualise and slow down birdsong, he not only uses it in his music but also works with school children developing lessons that combine music and science.

Video Journalist: Susannah Reid

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