Do you realize Sigur Rós haven’t released a new album in 10 years? Valtari and Kveikur arrived 13 months apart in 2012 and 2013, and since then it’s been EPs, soundtracks, and other projects that should not be categorized as Official Sigur Rós Albums. They were working out new material on the road around the time I saw them play a spellbinding set at Primavera Sound — in 2016, but no grand statement has since materialized. Fortunately, that’s about to change: The Icelandic post-rock OGs are promising a new LP for release this June, and they’re going on tour with a 41-piece orchestra through both Europe and North America.