Heart wrenching piece.
I was invited to the linked performance by the Israeli Chamber Project. They are performing a piece by Gideon Klein, composed in a Nazi prison camp. Nine days after completion, he was sent to Auschwitz, and he was killed, at 26 years of age.
[video]http://holocaustmusic.ort.org/places/theresienstadt/klein-gideon/[/video]