This is a massive immersive sound and light experience from Rolling Ryot, with a 15-channel sound system – 15 large speakers arranged linearly across 420 feet, underneath the Boggy Creek overpass in Rosewood Park –that explores the creative potential of sound in motion, and featuring compositions by Sebastian DeWay, Simon Hutchinson, Joaquin Jimenez-Sauma, Zeynep Özcan, Brian Wenner, and Lyman Hardy. Verdict: Mindblowing. Suggestion: Bike your way there, bring a lawn chair and a blanket, be glad stuff like this still happens in Austin.