Hopefully, you all live in places where local officials have arbitrarily rescheduled Halloween, so you can fire up the porch speakers & projectors like DT reader Mike, and freak the neighborhood kids the hell out with Le Corbusier & Edgard Varese's multimedia Expo-travaganza, Poème électronique, which was commissioned by Philips for their 1958 World's Fair pavilion in Brussels.
Varese-Edgard-and-Le-Corbusier_Poeme-Electronique_1958 [youtube, thanks dt reader mike]
Poème électronique [wikipedia]
This Poème électronique was brought to you by Philips [greg.org]