An untold number of musicians were imprisoned in Nazi concentration camps. Despite the horrific conditions they experienced, they found the courage and inspiration to write and perform music, most of which has never been heard. But a surprising amount of music written or performed in concentration camps actually survived. It was encoded on material of all kinds, from notebooks to toilet paper to telegrams, or handed down by heart. I believe this music could be an invaluable tool in preserving the memory of the Holocaust, honoring the victims, and educating Americans about this catastrophic historical event. Three years ago, I...