America is flush with loud warnings. It’s noisy and chaotic, a crumbling facade of rights and wrongs and gun wounds; that grows all the more apparent as the presidential election inches closer. During his DJ set at Big Ears this past March, Nicolas Jaar capitalized on that governmental unease. Wall Street calls boomed and a race riot speech played, Jaar welding financial inequality with rampant discrimination particularly well. The crowd stopped dancing to listen. A synthesized sound of America the past and America the present rang like a silent warning, a flashing light with the audio cord cut in two. Sirens, Jaar’s sophomore solo full-length, takes a similar snapshot of our nation, but this time there’s a timelessness in his songs and themes.