Of all the bands that have reunited over the years, one would not have expected Godspeed You! Black Emperor to have stuck to it. And yet, Luciferian Towers marks the Montreal ensemble’s third album since their return to touring in 2010, following on from 2012’s Polaris Prize winning Allelujah! Don’t Bend! Ascend and 2015’s Asunder, Sweet and Other Distress. Those albums saw a progression of sorts in the collective’s signature sound, with both  featuring more thick drones and towering examples of thunderous interplay from guest orchestras. That a group of such inherent breath and scope can continue to expand and develop their sound…