Zyklon B
Throbbing Gristle's best-selling single was "Zyklon B Zombie" (1978), the title being a reference to the Zyklon B poison gas used at Auschwitz extermination camp. With their album "20 Jazz Funk Greats" they attempted to move away from their industrial sound, and produced songs in a variety of different musical genres. P-Orridge received a number of threatening phone calls, proceeding to record them and use them as a backing track for the TG song "Death Threats".