I was both surprised and amused when Natural Snow Buildings released an entire full-length album of all new material to celebrate Record Store Day, as nobody has such a voluminous backlog of material that they can afford to do something like that (well, almost nobody).  Even more unexpectedly, Chants of Niflheim feels like a thematically coherent and deliberately sequenced Natural Snow Buildings album rather than just some collection of curiosities and orphaned songs.  While I wouldn't characterize it as "uniformly brilliant" or "radically different," it is nevertheless a very solid effort that boasts sufficient flashes of greatness to make it unmissable for existing fans.