Efterklang (Danish for “reverberation”) released one of 2004’s most gorgeous experimental/post-rock albums, Tripper, and has been baiting fans with EPs and mini-releases ever since. At the band’s simplest, it’s predictably, Scandinavian-ly spooky (like Múm singing about ghost ships), and at its best and most complex, like a light-filled prism. Few ensembles can make orchestral and electronic arrangements sound so natural together. Parades makes good on Efterklang’s sparkly promise by showcasing that prowess while moving forward in style. Its scale is grander and its vocals more campfire-like, which won’t please everyone. But there are one-minute, and even 30-second, stretches on songs like “Illuminant” that are their own complete musical worlds, and are better than many bands’ whole albums.