Desert music from ‘El Pueblo de los Negros’, Khamlia. Traditional Gnoua music originated in East and West Africa and was brought by the slaves to Morocco. Their music was used to connect to spirit and as healing sound for the soul. The repetitive beat along with the rhythmic call-and-response chanting have a trance-like, calming effect on body, mind and soul. Traditional Gnaoua processions would last days, sometimes an entire week, where several spirits were invoked. Nowadays it is widely seen as popular music in Morocco, although healing rituals are still secretly performed.