Marie Chain and "Holy Water" come at a time when the lines between styles of music are becoming less natural. For more than ten years, the Berlin-based artist has been making what she calls "Global Soul," and her newest song shows why that term is so perfect. The track's origin story reads like something from a travel journal. Chain conceived the melody during a summer hike...

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...