Also called chang ko'uz and temir chang. A jew's harp which has a flexible, thin lamella extending through the center of the iron frame to the handle. The tip of the lamella is bent at a right angle. The instrument is held horizontally between the upper and lower teeth. A sound is produced by plucking the tip of the lamella with a finger (usually the index finger). By adjusting the shape of the oral cavity and changing breathing, the player can modulate overtones and play a melody.