Adriana Spuria’s new single, “Stone,” presents itself with the polished feel of a perfect skipping-stone, but listening closely reveals it has the curious weight of a fossil in your palm. Spuria sings of a very specific, modern affliction: the slow petrification of the heart. This is a loneliness born not from solitude, but from an inability to feel for anyone else, an insulation that...

HollyBear does not sound heartbroken on "OBVIOUS". She sounds like she already checked the receipts, closed the app, fixed her hair, and decided the lesson was expensive but useful. That is the fun of the single. It has the warmth of R&B, the cool posture of jazz influence, and the tiny side-eye of someone who knows exactly what happened. "OBVIOUS" moves with a smile that...