Actor Clarke Peters narrates this special edition to mark 50 years since the assassination of the Reverend Dr Martin Luther King on April 4th 1968.

"If in doubt, pray and sing" an activist recalls how music was used as part of Dr King's non-violent resistance movement.

The stories of the songs behind the Civil Rights Movement include the spirituals and freedom songs that were integral to the struggle. In the 19th century, music became a tool for protest and resistance among the enslaved peoples of the American South.

Hear the stories behind some of the most popular anthems and Freedom Songs that were later used as part of the civil resistance movement that eventually led to voting rights and desegregation.

From Swing Low Sweet Chariot and We Shall Overcome to Amazing Grace, Strange Fruit and A Change Is Gonna Come, witnesses to and participants in the Civil Rights Movement recall how songs were such a vital part of the story.

Producer: Maggie Ayre

First broadcast on BBC Radio 4 in April 2018.