On her new album TR3S, singer/songwriter Bratty opens up about all that’s weighing on her heart: her anxieties and insecurities and deepest infatuations, the singular pain of feeling too much, the strange disconnect of dealing with seasonal depression in the summertime. In an evolution of the unguarded storytelling that’s made her one of the most compelling young artists to emerge in recent years, the 23-year-old Mexico native sets that introspection to a bright and dreamy form of indie-pop/surf-rock, lit up in her sweetly disarming vocal work and effervescent melodies. The latest triumph in a breakout year that’s included making her U.S. debut with a much-celebrated set at Coachella, TR3S ultimately finds an unlikely power in absolute sensitivity.