It'is one of the song to call the genius at night in the maroccan Gnawa cullt.It is performed by Youssef Jandouk atthe voice and the Guembri (or Gumbri or Hajouj) a rectanglar camel skin bass , which strings are propitiated with blood. Youssef is a maalem, a master of ceremony of this cult.
Ujjaya , the malagasy ambient musician ,is playing here a wall of sound rock guitar in the way of My Bloody Valentine or Slowdive