Gnawa music is a mixture of sub-Saharan African, Berber, and Sufi religious songs and rhythms. It combines music and acrobatic dancing. The music is both a prayer and a celebration of life. Though many of the influences that formed this music can be traced to sub-Saharan Africa, and specifically, the Western Sahel, its practice is concentrated in north Africa, mainly South-western Algeria and Morocco. (See Gnawa for more details)
In a Gnawa phrase or a few lines are repeated over and over throughout a particular song though the song may last a long time. In fact, a song may last several hours non-stop. The norm, though, is that what seems to the uninitiated to be one long song is actually a series of chants, which has to do with describing the various spirits (in Arabic mlouk (sing. melk)), so what seems to be a 20 minute piece may be a whole series of pieces, a suite for Sidi Moussa, Sidi Hamou, Sidi Mimoun or the others. But because they are suited for adepts in a state of trance, they go on and on, and have the effect, that they provoke trance from different angles.
The Gnawa (or Gnaoua, Ghanawa, Ghanawi, Gnawi) people originated from North and West Africa; to be precise the ancient Ghanaian Empire of Ouagadougou (present day Mauritania, Senegal, Gambia, Burkino Faso and 85% of Mali (pre Gnawi/Mali Wars)).
This name Gnawa is taken from one of the indigenous languages of the Sahara Desert called Tamazight. The phonology of this term according to the grammatical principles of Tamazight is as follows: Gnawi (singular), Gnawa (collective) and Gnawn (plural rarely used).
The Gnawa are an ethnic group whom, with the passing of time became a part of the Sufi order in Morocco. This kingdom bordered Morocco and Algeria's southern borders, and had a 300 year blood war with Morocco, prior to both countries forging a long lasting peace accord (conducted between the Monarchs of both countries alone with a scribe). Evidence of this is found is the tribal oral tradition of both countries (Soussi, Riffi, & Ashanti tribes). The result of which saw unprecedented levels of marriages between the Gnawis (ancient Ghanaians) and Soussis of Morocco. A small percentage of this community (Gnawa/Ghanawa) were given to Morocco's monarch (Mulay: to mean Emperor) as workers as a token and seal of the aforementioned accord. They traveled to Morocco by way of tribal caravans during (and external to) the hours of trade Trans-Saharan trade.