↑A Woman at War: Marlene Dietrich remembered; p. 157 J. David Riva, Guy Stern - 2006 "Jazz guitarist COCO SCHUMANN was born into a mixed Christian/Jewish family in Berlin as Heinz Jacob Schumann. Even as a child he became a devotee of swing music, which was outlawed by the Nazi regime. As a "half-Jew," he survived the concentration camps, including Theresienstadt (Terezien), where he became a member of the legendary "Ghetto Swingers."