From Sheffield to Bangor in Northern Ireland, UK producer HART is blending dusty boom-bap and sweaty-basement garage to enthralling effect. The artist’s debut LP, Moon Jazz, focused on the romance between jazz and hip-hop, lending influence from the trip-hop sounds of Bonobo and Massive Attack. But as the seasons change and winter lets go of its cold embrace she finds herself meandering towards the memories and influence from the underground parties of the Steel City. “I started producing when I was in Australia,” she says, “but I’ve been really into music since I moved to Sheffield. It’s got a big…