It's being called the lost music of Auschwitz. A British composer has spoken to FRANCE 24 about his chance discovery of pages of compositions by prisoners at the Auschwitz death camp in Nazi-occupied Poland. The works were often put together by people who did not survive the camp's horrors. Leo Geyer has spent the last decade researching and documenting the compositions, amid his quest to ensure that the music lives on. He spoke to us in Perspective.