Three years after its sepulchral () album, Sigur Ros returns with its best impression of what this Icelandic quartet deems upbeat. Takk is sharper and more direct than anything the band has previously churned out, but that is not to say it's by any means accessible by normal standards. The music still ebbs and flows in an other-worldly spell but now cacophonous blasts of testosterone-fueled guitars that feel like glaciers melting pin back the eyelids, while ethereal vocals twitter and fade in the times between. What sounded like the soundtrack to the most exquisite death on albums past now sounds like a live band playing its guts out.