‘Heavy Meta’, the new release from Stockholm synth duo Unify Separate, is afive-track EP full of switchback turns, swinging between poles of self-loathingand self-affirmation, revenge and compassion, and love and regret.The EP’s opener ‘Dark Heaven’ channels the classic 80s synthpop of DepecheMode and transgressive dancefloor delights, second song ‘Detox’ is a Radio-head In Rainbows-era punky…