How Brahms' German Requiem has touched and changed people’s lives.

It was written as a tribute to his mother and designed to comfort the grieving,

Stuart Perkins describes how the piece arrived at the right time in his life, after the death of his aunt.

Axel Körner, Professor of Modern History at University College London, explains the genesis of the work and how the deaths of Brahms' friends and family contributed to the emotional power of the piece.

Daniel Malis and Danica Buckley recall how the piece enabled them to cope with the trauma of the Boston marathon bombings.

Simon Halsey, Chief Conductor of the Berlin Radio Choir, explores how Brahms' experience as a church musician enabled him to distil hundreds of years of musical history into this dramatic choral work.

For Imani Mosley, the piece helped her through a traumatic time in hospital. Rosemary Sales sought solace in the physical power of Brahms' music after the death of her son. And June Noble recounts how the piece helped her find her voice and make her peace with her parents.

Series about pieces of music with a powerful emotional impact

Producer: Melvin Rickarby

First broadcast on BBC Radio 4 in December 2013.