In a world that loves labels, being unclassifiable can be a heavy cross to bear… Long lumbered with reductive and largely meaningless tags like “Slowcore” (or worse still “Sadcore”), Low’s elegant sound has all too frequently been banished to the realms of what Jack Black’s character in High Fidelity might have dubbed “Old, sad bastard music”.   Such curt dismissal though, does a great disservice to Low’s intricate and deceptively chameleonic songs which, over the course of 15 albums, have run the gamut from chilly post-rock and spectral folk to buoyant indie pop, throwing in the odd The Smiths cover…