Hollywood, 1940. As Hitler devours Europe and America inches toward war, a remarkable technology that could prove invaluable to the U.S. Navy is invented by… a sexy movie star and an avant garde composer? Though it sounds more than a little far-fetched, it’s actually a true story, and the subject of Elyse Singer’s multimedia play Frequency Hopping. Staged at 3 Legged Dog, the elegant production deploys a small army of robotic instruments (drums, gongs,......