Annie Mac has taken up the reins from Radio 1's incumbent new music fanatic, Zane Lowe, with consummate ease this month - and the latest emerging artist she's championing, New York's Tei Shi might just be one of the show's best ever discoveries. We've been a fan of Valerie Teicher's simmering electro RnB for a while now, but her latest tune, 'Go Slow', is the Colombian-born singer's most detailed composition yet; breathy samples ricochet off bubblegum bursts of synth, wob-wobbing bass and skewiff beats, while Tei's crystalline tones cut through with a shimmer on the sparky chorus, "Baby won't you reach out to me?" - DC