Berlin’s rock band Kadavar has written its second album during a single pandemic. This time around, however, they weren’t stuck alone in lockdown. They colluded with US prog rock wunderkinder Elder, Berlin immigrants just like Kadavar were a decade ago, and decided to drown in sound together. What surfaced is “A Story of Darkness & Light”, a marvel of musical liberty, a gushing opus between rock, prog and alternative, held...