


After one more album, 1997's Infernal, guitarist/vocalist/songwriter Dan Swanö left the band, and his departure is generally associated with a decline in quality in the band's material. Crimson was a 40-minute concept album consisting entirely of one track, concerning a post-apocalyptic future in which mankind had lost the ability to breed. The Spectral Sorrows, Until Eternity Ends, and Purgatory Afterglow continued the trend, so that by the release of 1996's Crimson they were a progressive metal band. Their second release Unorthodox, with tracks like "Enigma" and "When All Is Said", showed them branching out from some of the genre's conventions. Edge of Sanity began as a death metal band with their debut release Nothing But Death Remains.
