It’s a cold, icy January day in the Pennsylvania countryside, and especially frigid in this unheated barn, filled with metal. But there’s warmth in the air, and it comes from a sound. It’s loud, intense and overwhelming — a deep ringing that seemingly could last forever.

These huge reverberations emanate from copper and bronze sculptures, gathered in the barn like a dense metal jungle. Val Bertoia weaves through them, playing them as he has for decades. He brushes bundles of tall rods that stand upright on square bases; they sway and collide, creating radiant tones. He taps short bars hanging from the ceiling, which connect and chime. He rubs wide gongs with a cloth mallet, and humanlike cries bellow forth. The Washington Post