“They call us the sound police,” explains Juan Lobostrie, a festival staffer who makes his way around the grounds on foot and via golf cart. Lobostrie and two others work to ensure that sound doesn’t bleed through from one stage or tent to another.

“Before the festival starts,” Lobostrie explains while taking me around in his golf cart, “we make sure all the towers are in the right positions, all the cable runs are made and that it all works. We pretty much facilitate the sound companies c...