“Kolysanka Dla Synka W Krematorium" taken from the CD Songs from the Depths of Hell, courtesy of Smithsonian Folkways.

Sung here in Polish by the former political prisoner Aleksander Kulisiewicz, the song 'Lullaby for my little boy in the crematorium' was originally written in Yiddish as 'A viglid far mayn yingele in krematoryum' by the Jewish prisoner Aron Liebeskind in Treblinka. Liebeskind passed the song on to Kulisiewicz himself in Sachsenhausen before he was deported to Auschwitz in 1943.