In this edition of Countryfile, John Craven explores the life and work of one of our greatest ever composers, Ralph Vaughan Williams. He meets world-renowned conductor Christopher Warren Green, who plays Vaughan Williams' best-loved work, The Lark Ascending, on the lawn at Vaughan Williams' childhood home. He also meets a maker of traditional instruments like the dulcimer and psaltery, instruments which had an influence on the music Vaughan Williams made. John spends time with the acoustic ecologists stringing violins from trees and burying microphones in the forest floor, using the landscape to make their music. And in a rousing finale John presents Christopher Warren Green with Ralph Vaughan Williams' very own baton with which to conduct the Capel Choral Society in their rendition of Vaughan Williams' Linden Lea. Ellie also looks back at some of the best bits of Countryfile that have featured music. Like the time Matt got a lesson in bell ringing, when Julia went on the trail of Benjamin Britten in Sussex, or the time Adam joined the shepherds in the Swiss Alps, yodelling to bring their flocks down off the mountains.