I'm not sure I've ever understood one lyric of a Sigur Ros song. The majority of the band's vocals unfurl in the made-up language called "Hopelandic," so the obscurity is intentional. But that's one thing that makes Sigur Ros so great: the emphasis is not on the meaning of the words, but their feeling. And you could pretty much say that about the crux of the band's work: it's there to make you feel, not think.

"Inni" is a two-disc live album, the first in the band's career, and if you thought you appreciated the Icelandic four-piece before, "Inni" will only strengthens that. The collection kicks off with one of the group's most stunning pieces, the opiatic "Svefn-g-englar" from the 1999 masterpiece "Ágætis byrjun." This isn't just a hits parade though. "Ny batteri" begins with a couple minutes of distortion before easing into an operatic lament.

What's crazy is that even though these renditions were recorded live, in the quieter numbers, like "Fljotavik," you can barely hear so much as a breath coming from the London audience. And you get the feeling that's a case of the crowd having the utmost respect for the material and not just studio wizardry.

Overall, there's a nice mix of material pulling from the band's career, including songs from (stay with me) 2002's "( )", 2005's "Takk..." and more recent work like 2008's "Me_ su_ í eyrum vi_ spilum endalaust." Word is Sigur Ros is working on a new album for next year, so "Inni" should be more than enough to hold you over.

"Svefn-g-englar" lyrics

(Ég) er kominn aftur (á ný)
Inn í þig
(Það er) svo gott að vera (hér)
En stoppa stutt við

Ég flýt um í neðarsjávar hýði
(á hóteli)
beintengdur við rafmagnstöfluna
(og nærist)

tjú, tjú
tjú, tjú

En biðin gerir mig (leiðan)
Brot (hættan) sparka frá mér (og kall á)
Ég verð að fara (hjálp)

tjú, tjú, tjú
tjú, tjú, tjú

tjú, tjú, tjú, tjú, tjú

Ég spring út og friðurinn í loft upp

(Baðaður nýju ljósi
Ég græt og ég græt, aftengdur)
Ónýttur heili settur á brjóst og mataður af svefn

tjú, tjú, tjú
tjú, tjú, tjú