This video for “Karn Evil 9, 1st Impression Part 2″ by Emerson, Lake and Palmer (from ELP’s 1973 “Brain Salad Surgery” album) was filmed at the coolest place ever! It’s the XL Music City Lab. They create LED lighting for major concert tours. This specific unit was used in a recent The Who tour. AWESOME! Thanks guys for letting me use your place like a magical playground!