
The music itself is quite emotional and dreary, using a variety of brass, woodwinds (in particular, flutes), string quartets and various guitars. In some instances, synthesizers and drum machines or real percussion is used. Anna-Varney has clearly stated that she creates her music about herself, solely for herself. Various themes include death, suicide, karmatic pain, loneliness and sadness. A very important concept is the idea of becoming or being a woman, or at least removal of the male genitalia in favour of attaining the female variant (in later album artwork, Anna-Varney is usually shown nude with a vagina which has been edited in by computer rather than having her body surgically altered due to spiritual conflicts; in either case, Anna-Varney is now referred to by the pronoun "she" instead of "he".) There are also several musical themes that reappear in her works; the most notable example is the song "Birth - Fiendish Figuration" which has appeared in at least four forms on separate releases. Other songs contain similar melodic lines or lyrics from an earlier release.
On December 18, Sopor Aeternus announced that they had finished recording yet another studio album. Release is set for April 13 2007. The album is titled "Les Fleurs du mal" (The Flowers of Evil), as seen in the album teaser downloadable from the official website.