The Japanese art of kintsugi is to take something broken and make it more beautiful than before; shards of ceramic put back together with gold-flecked glue, the cracks a proud part of the object. It’s a concept that’s central to Broken Machine, the second album from Southend-formed, South-east-based five-piece Nothing But Thieves, whose slow-burning self-titled 2015 debut made them a big deal worldwide– but fractured them too.