Blending big band swing, lounge-y downtempo, and noirish vocals, Koop's third album adds loads of live instrumentation to the acid jazz template the Swedish duo forged in the late '90s. The resulting organic energy thrives on tunes like “Forces… Darling”—with its snake-charming clarinet solo and coy duet between Earl Zinger and Little Dragon's Yukimi Nagano—and “Koop Island Blues,” which pairs Ane Brun's velveteen vocals with fluttering marimba and mandolin. By making arrangements the priority, Koop churn out blue mood and breezy, electronics-assisted exotica as ageless as it is forward-looking.