Anastasia Rydlevskaya makes rage feel methodical on Alchemia. Her fourth full-length album takes the four classical stages of alchemy and turns them into a hard-edged account of betrayal, trauma and feminine power. Nigredo, Albedo and Calcinatio, Citrinitas, then Rubedo each push the heroine into a new state. The result sits firmly in dark electronic music, but it also carries experimental pop and pagan motifs. That framing...

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....