Tergui Music or Gnawa music(Diwan), it is the traditional way of expressing beside the Arabic Dialect in South Algeria, it is an ancient music brought from Africa into Algeria by the dynasties of the Maghreb, the Tergui music is influenced by Tende(a style that is used in the far south of Algeria) , and Timimoun known as Gourara the Red Oasis Ahellil , the Algerian Gnawa Music is in fact called " Gnawa Diwan Music", and the term Diwan is originally Arabic, the Moroccan Gnawa was globally famous for using it, the term "Diwan Music" is used to signify the "Gnawa Music" , this type of music exists in Tunisia, Egypt and (perhaps even Libya) under a particular name in some country or another, the Algerian Diwan music has some similarities with Diwan music in Africa , south of Sahara Desert where it is used in some spiritual rituals, and just like the Gnawa music in Morocco, Tunisia, Libya and Egypt, its fame depends on the size of the population that practises it , nevertheless, the Gnawa music in all these countries and regions does not share the same power and influence over these countries and regions. In 2006, the Algerian cultural authorities declared that this genre of music is Algerian as a part of the plan of building the nation, and that came as an attempt to repeat the success that was achieved by Gnawa music in Algeria and Morocco, for two years, many events were organized such as the Gnawa music festival in the city of Essaouira, Morocco, like the other Mahgreb countries, the Diwan music in Algeria needs-nationally- to be reconsidered with its long journey path through the desert, in the purpose of finding its uniqueness so it can be enriched and developed, to accept the existence of such a genre is to recognize the African culture, and the phenomena of slavery which happened in the past alongside with all what is considered to be forbidden and can not dive into it. Famous artists of this music: Othmane Bali , Khansa Jeridah, Becharia and Ziad Karim.