Norwegian shapeshifters Ulver remain as literary, elusive, and dark as ever on Flowers of Evil

Norway’s Ulver debuted in 1993 as a howling black-metal outfit, but since then front man and composer Kristoffer Rygg has steered his ship into such different waters you can hardly say it’s going a-Viking anymore. (If you want to hear Ulver at their heaviest since their early days, I’d recommend their collaborations with Sunn O))), 2003’s “Cut WoodEd” and 2014’s Terrestrials.)…