You know that exact second when everyone is staring at you, waiting for you to blow out the candles, and all you want to do is disappear? Ava Valianti has captured that highly specific, deeply uncomfortable feeling and turned it into an absolute indie pop gem. Her latest single, "Birthday Cake," drops you right into the middle of a party you never wanted to attend....

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...