I've had it for a few weeks now and have had time to absorb, at least, the first couple of layers of the album,(there's alot going on in the depths of the music here. I could probably listen to it a thousand times and hear something new each time). It's got some really great stuff and the usual incredible musicianship one would expect from Emperor.
BUT,(tell me you didn't see the "but" coming from a mile away) I'm finding that I have to adjust my general approach to Emperor's music in order to get into this disc. Try as hard as I may, I really can't call this a Black Metal record. There are certainly some Black elements in there but the dominant musical theme here seems to play between Death Metal and Traditional Heavy Metal. This is deffinately more of a Issahn record than a complete band effort. The emphasis on lead guitar and the King Diamond-esque leanings in some songs make it very apparent who was pulling the strings,(no pun intended... guitar - strings - get it? anyway...) both in the writing sessions and at the mixing board. Quite frankly, there is little difference in Samoth and Trym's playing approach and style here than from the Zyklon release, which adds to the Death Metal feel that I mentioned before.
None of this is to say that this is not a great release nor a benchmark for both the band and the genre. I feel that bands like ...And Oceans, Enochian Cresent, and Dodheimsgard are doing far more to actually progress Black Metal in the present and I would have liked to have seen Emperor show some initiative in the directions these bands are taking, but this is still a fine album to end the days of Emperor with. "Thorns On My Grave", "The Eruption", and "The Tounge Of Fire" are my picks for stand-out tracks.
If you're looking for sheer brutality, well, you won't find too much of that on Prometheus. But if you want to hear Death, Black, and Traditional Metal styles fused with Baroque, Classical, and Jazz as well as a Progressive thread wrought throughout then this will certainly provide you with months of aural enjoyment.