This metal quartet allegedly planned to make this, their third album, ambient from day one. I believe it. This is basically heavier and more predictable Tangerine Dream music, which I mean as an insult to neither group. TD loves the natural splashing of oscillators and their primitively sequenced ribbons. BI are very metal here in that metal is a primarily anti-aleatory form; it generally hates mess and formlessness; the stately titration of themes here is extremely metal. The difference is that here, across all the “movements,” the motifs emerge only very very slowly. And it’s all synths, no guitars.