Tuesday, April 22 at Austin’s Moody Amphitheater felt like it would never dry out. A curtain of rain blanketed the city in the early evening, forcing fans to huddle under trees and the few dry patches the venue had to offer. I, running from improv class on the other side of town, took respite under a bridge for 15 minutes before the rain subsided. By the time Khruangbin finally took the stage after a brief delay, the air was so heavy with humidity that it clung to your skin, like you could reach out and grab it. But the moment the band walked out, framed by three glowing window panels inspired by their newest album, A La Sala, the crowd roared like the sun had risen through the parted clouds, 9 p.m. in the evening.