Concert pianist Alice Herz-Sommer was sent to the Theresienstadt concentration camp when she was 39. And she used her music to survive. Ms Herz-Sommer died on Sunday aged 110. Canadian producer Frederic Bohbot has made an Oscar nominated short film about Ms Herz-Sommer called "The Lady in Number 6: Music Saved My Life". He shares his memories with guest host Laura Lynch.

Below is an edited version of Frederic Bohbot's film about Alice Herz-Sommer.