RSAI’s new single, “Let The Good Times Roll,” has waltzed into my listening rotation, and honestly, it feels a bit like finding an unexpected party already in full swing in your own living room. This Moscow-based musician seems intent on manufacturing pure, unadulterated joy, the kind that fizzes up from your toes and demands a bit of a shimmy, whether you’re ready for it...

Jon Gold’s new single, "Lullaby for a Dream," is an act of gorgeous disorientation. You see the name—a pianist rooted in the intricate soils of jazz—and you prepare for one thing, but what arrives is a mist-laden skiff drifting from an entirely different shore. Gold, a Delaware musician, has composed a piece of British-Gaelic folk, and the cognitive dissonance is half the immediate magic....