Sphere in Las Vegas. Photographer: Bridget Bennett/Bloomberg
The Hot Toddies Jazz Band is ripping through a set of standards to a packed house at the nightclub Somewhere Nowhere on a cold, gray night in Manhattan. There’s barely room to move, but a clutch of devoted swing dancers has carved out a section off to one side of the stage. As the trombonist and clarinetist trade hot licks, a bald man wearing spats pulls a woman in a backless dress into an exuberant Lindy Hop.“It’s crazy like this ev...