Throughout their career of making alternative instrumental sounds, Swiss quartet Lilium Sova have never become musically stagnant. With each record, their art rock meets post metal has dug deeply into a world of musical freedoms. Whether working a grinding bass riff and atonal woodwind on a number worthy of Mike Patton’s Ipecac label (2012’s ‘2.00 AM Insomnia’), indulging in a sound that feels like a Mask of Bees demo reworked by Al Jourgensen (2008’s ‘Moose’) or even delving into the murky musical waters of sludge metal tempered by a strange blackgaze sheen (2016’s ‘Ofkaeling (Valley 6/6)’, their world of noise is never less than fascinating.