BBC "Twenty Minutes" interval talk
Steve Roud
"What Visions I Have Seen"

" ... the summer customs of Britain.
He explains what they are and when, who is involved and suggests some meanings.
His piece is illustrated with with recordings of events such as Crying the Neck in Cornwall, well-dressing in Derbyshire, and the solstice celebrations at Stonehenge."

Broadcast August 2013 but still available on iPlayer radio.
https://www.bbc.co.uk/programmes/b0385gqf 
[it says 25 minutes
but on my tablet it came up with the whole evening's performance and the talk was @ 26:40]

~~~~~~~~~~~~~~~~~~
bbc iPlayer Radio app
http://www.bbc.co.uk/programmes/articles/3yvdp3zQJWLtl204z9nxgRt/download-the-iplayer-radio-app 
(then click the '+' on the programme's web page
then on the app click
Menu > My Radio > Listen Later)
~~~~~~~~~~~~~~~~~~