Have you ever heard of "GNAOUA"
Gnaoua, also spelled Gnawa, is a musical and spiritual tradition originating in West Africa, particularly in the regions of Morocco, Algeria, and Mali. It is a form of Sufi religious music that combines elements of African, Berber, and Arabic music with mystical beliefs.
this is a documentary about it's secrets in french, and you can choose translated subtitles in the video.
<a rel="noreferrer nofollow noopener" href="https://youtu.be/gJgiiAYsPC4" target="_blank">https://youtu.be/gJgiiAYsPC4</a>