00s acid jazz alternative alternative metal alternative rock ambient anathema art rock art-rock atmospheric atmospheric doom metal atmospheric metal atmospheric rock beautiful black metal british celtic dark death doom death doom metal death metal death-doom metal depressive depressive rock doom doom death metal doom metal doom rock doom-death metal doom/death england english experimental faves goth rock gothic gothic metal gothic rock heavy metal loving it melancholic melancholy melodic metal memories metal metal monk approved mine mrchris approved post-rock progressive progressive metal progressive rock psychedelic psychedelic doom metal psychedelic rock rock sad tunak tunak tun tuska 2006 uk