Dallas’ most bright and shiny event, Aurora, a massive collection of light, art and sound installations, is sadly only a biennial throw down. So some of us are still reflecting on 2015, while we wait for 2017 to hurry on up and light up the night. Enter Prelude: A Preview of Aurora 2017 from 8 p.m. to midnight Friday and Saturday. All around the AT&T Performing Arts Campus (2403 Flora St.), 10 large installations of light, video and sound from 11 international artists will whet everyone’s Aurora appetite. Live music begins at 6:30 p.m. both nights in Strauss Square. The event is free, but RSVPs are requested at attpac.org. Those RSVPs can be exchanged for a limited collectible; so don’t even think of being apathetic. For more info on Aurora, visitdallasaurora.com.