It has a register of an octave and a half, and the chord is diatonic; the accuracy of the playing, all the more problematic since oriental music uses quarter tones, depends very much on the skill of the musician. He must constantly adapt the pitch of the sounds by varying the pressure of the breath and the lips on the reeds. It is used in popular music, traditionally in duet with the davul, daouli or toupan drum, and generally played outdoors during festivals, fights and weddings in the Near East and North Africa.