Subterrestrial's "H-21" is inspired by early 20th century exotic dancer Mata Hari, who was executed for treason in France during World War I after being accused of spying for Germany. Subterrestrial uses harsh, 8-bit noise and heavily aliased exotic rhythms to explore her often violent life and tragic death. It is believed that she was wrongly accused of her crime and made a scapegoat. H-21 was her alleged codename.
