Enthusiasts for tympanic destruction and curators of bizarre tweets HEALTH closed down shop at Pitchfork’s Blue Stage on the final night in the most proper fashion – pure unbridled brutality.  If you thought Odd Future and/or their audience offered the festival’s most rowdy contingent, your ass profoundly miscalculated. For those who are disinclined to enjoy music of the noisier persuasion, artists like HEALTH provide some insight as to its appeal. Like much of abstract fine art, the magic lies within the process more than the product. The primordial energy and gusto it takes an artist like HEALTH to recreate suffocating and salient tension on stage is nothing short of astounding. That the stage was still standing under the weight of HEALTH’s crushing sonic heaviness is equally astounding. The quartet pounded through the hits – “Nice Girls” “Zoothorns” “Crime Wave,” and left nothing but rubble and scored earth in their wake. And on the other side of the barricade – fist pumping, crowd surfing, beach balls, costumes, and general skulduggery from the audience summoned the sinister mayhem of sweaty basement shows to Union Park on a larger scale. Aurally annihilating, yet fun and refined; HEALTH was gnarly.