Listening to Sons of Martha's new single, "Samurai Smile," feels a bit like finding a beautiful, slightly unnerving porcelain doll tucked away in a toolbox – all sharp edges and unexpected fragility. This North London outfit promised a harder sound, and they deliver; guitars chew and churn with a satisfying grit reminiscent of early '90s Manchester swagger, but filtered through a distinctly modern unease....

North Star Union has released "Echoes of decay", a slice of melodic heavy metal that feels less like a standard studio tracking and more like something dug out of the permafrost. There is a curious quality to Icelandic composer Myrmann’s work here; because he handles all the instrumentation and composition himself at Midgard Studio, the track possesses a singular, frighteningly cohesive nervous system. It...