Paradise Lost-influenced death/doom metal, Novembers Doom gave a new dark shade to the style with it's debut "Amid Its Hallowed Mirth".
Later the band turned into a melodic, gothic influenced direction with common clear singing and gave more role for the atmoshperic sound, but the first album was their heaviest one. Not progression or diverse themes were in their focus, they've step back to the ordinary roots of doom. So except that the concept wasn't different from other bands in this style, it was based on melancholy, heavy sound, emotional background and strong atmosphere. The features of their late style were there on the first album too, but the occasional opera styled female singing and the atmosphere on "Amid Its Hallowed Mirth" could serve only as some contrast to the very heavy, distorted sound and deep growling. Novembers Doom was one of those bands who determined the sound of late '90s and early '00s main metal scene on the side of bands like Paradise Lost, Sentenced, Tiamat, Katatonia, My Dying Bride, Moonspell, or Therion, only their name was less known for some reason.