“She already rapped over UK candy-coated rave producer Lone with “Liquorice”, so to see fast-rising upstart Azealia Banks collaborate with someone like Machinedrum feels natural. Travis Stewart’s original “SXLND” -- out this week -- is a bouncy, bottom-heavy take on the sensuously skippy rhythms of UK Funky, and in Banks’ hands the delirious original proves a meaty skeleton for her “hella progressi”