Studio's Rasmus Hägg provided El Perro Del Mar's "Change of Heart" with a buoyant, danceable base. Here, the Swede's partner Dan Lissvik gives another countrywoman a brighter palette, transforming Fever Ray's eerie, excellent second single "When I Grow Up" into an afternoon in the park: The sound of children playing, a languid, pastoral, sun-dappled feel. Turn down the sound on ...