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....

Heartbreak hits harder when it refuses to slam the door. Reetoxa's "Love Keeps Burning Still," takes that feeling and gives it piano, strings, and two voices circling the same emotional bruise. Led by Melbourne songwriter and vocalist Jason McKee, the single carries the ache of a marriage that ended, but left warmth behind. It is soft in pace, big in feeling, and built for late-night...