The latest vinyl reissue of this Swedish prog-death classic, released in a new 2015 transparent yellow vinyl edition from Black Mark. Here's the old review from the original CD version:

I'm finally getting the Edge Of Sanity back catalog in stock here at C-Blast, after being almost impossible to obtain for years without paying insane import prices. The Black Mark titles from this pioneering progressive death metal band are all essential for fans of both Swedish death metal and prog-death, with some albums (Crimson, The Spectral Sorrows, Unorthodox) ranking as some of my own favorite progressive extreme metal albums of all time. This was, of course, the most well-known band from Swedish metal polyglot Dan Swano, formed after his run with Pan-Thy-Monium as a crushing entry in the evolving Swedish death metal underground. After a relatively straightforward 1991 debut, Edge Of Sanity quickly began to experiment with a combination of prog rock, hard rock and gothic influences being infused into the band's monstrous death metal, and in the process produced some of the most adventurous extreme metal to come out of the Swedish underground.

While Edge Of Sanity's 1991 debut Nothing But Death Remains was a solid, if by-the-numbers slab of Swedish death metal, their follow-up Unorthodox came as a shock to the senses, outlining the adventurous and experimental approach that Dan Swano and company would pursue with this band throughout the rest of its career. Full of violent, macabre imagery and cosmic horror, Unorthodox begins with a brief intro track of catacomb ambiance that leads into a doleful violin melody that introduces the crushing three-part prog death epic "Enigma", and in this one song the band brings us a host of different sounds woven together into an ambitious death metal attack; pounding fast-paced thrash and powerful guttural roars stop on a dime and turn into soaring prog with dramatic sung vocals, operatic female voices, and backing violins and cellos; putrid deathslime rises up and is twisted into peculiar angular, mutoid grooves; regal doom-laden synths back the galloping majesty of the middle section. Swano wasn't at all bashful about incorporating a variety of progressive rock and classical elements into Unorthodox's music, and much like Celtic Frost's groundbreaking albums from the mid 80s, these guys were obviously looking to expand the textural and sonic parameters of death metal.

No heaviness is sacrificed here, though. Songs like ""Incipience to the Butchery", "Everlasting (Epidemic Reign Part III)" and "In the Veins / Darker Than Black" are carved out of the burliest, chunkiest Swedish death metal stock, even as they unfold to reveal some stunning melodic hooks and the occasional oddball production or editing trick. Compared to the even proggier later albums in Edge Of Sanity's career, this is still very rooted in classic Swede-death, but it's juiced up by Swano's clever injections of spacey electronics, somber instrumental classical guitar, horror-movie synthesizers, weird effects and editing tricks, and is loaded with Swano's brilliant use of melody and memorable riffs that would become even more mature on the following album The Spectral Sorrows.

Essential for fans of progressive and experimental old-school death metal.