Take Jack Horton, a Portland-based singer-songwriter whose path to folk-Americana included stops at Japanese law school, Tokyo piano bars, corporate boardrooms, and government offices. His latest EP, "Imperfections," feels like finding someone's private journal set to music. And that someone happens to write really, really well. The five-song collection opens with "Set Me Free," a piano-driven confession that might surprise anyone expecting typical breakup bitterness. Horton...

There’s a curious sort of old-soul gravity to Amelina’s single, “Step by Step,” one that defies the pop-rock sheen and the artist’s young age. The track opens with a resolute, almost stern, string and piano line that feels less like an invitation to a party and more like the sound of someone tying their shoelaces before a long journey. This is the sound of...