Cobalt's Eater of Birds seems to be considered their defining album. I am asking specifically about the titular song, which is also the final track of the album, but any thoughts on the album itself are appreciated as well.
There seems to be a fair amount of time signature experimentation and strange effects, but many parts sound pretty typical for old-school black metal (I'm reminded of Horna).
Is Cobalt's "Eater of Birds" considered 'experimental' or 'progressive' within its genre?