Last autumn, Sigur Rós released an intense yet intimate film documenting a single show at the close of their tour in November '08. At the time of the film's release, lead singer Jón þór Birgisson had just concluded two years of support behind his whimsical, solo debut Go
; a stirring, pop-oriented about-face and successful enough to trigger hints of apprehension among Rós' most devoted fans. Would Inni
be the last they would hear from Rós? Thankfully, the arrival of Valtari
, the band's sixth studio release to date, snuffs out any such need to worry.