Ambient black metal (also known as atmospheric black metal and black ambient) is a style that combines elements of black metal and ambient/dark ambient music. Typically the electric guitar is played together with synthesizers and keyboards, or simply in an 'atmospheric' style with much use of reverb. The infamous Norwegian artist Burzum may be considered a pioneer of black ambient, as demonstrated on a few of his early songs. Other prominent artists who have performed in this style include Velvet Cacoon (US), Wolves in the Throne Room (US), Xasthur (US), Leviathan (US), Manes (Norway), Blut Aus Nord (France), Summoning (Austria) and Striborg (Australia). Dark ambient is a subgenre of ambient music that features foreboding, ominous, or discordant overtones. Dark ambient emerged in the 1980s and 1990s with the introduction of new synthesizer and sampling technology in the electronic music genre and other technical advances in music. Dark ambient is a diverse genre, related to industrial music, noise, ethereal wave, and black metal, yet generally free from derivatives and connections to other genres or styles. *Source : Wikipedia More Details : http://en.wikipedia.org/wiki/Dark_ambient More Details : http://en.wikipedia.org/wiki/Black_ambient#Ambient_black_metal