Harmony This group of wind instruments has keyboards and air tanks which categorized among absolute earphones. Some times each reed produces only one sound, some of these instruments are in the earphones with tabulate and some in the earphones without tabulate other Features are including:  Having multiple reeds or single-layer reed  Air supply tank  It has a knob or key that transmits air into the tongue or sound tube.

History: Harmonica has been popular in the Balochistan region for more than five decades and is generally played at weddings and celebrations. Originally it was in a form of a hand-held organ, which it was introduced to India with priests while India was under the British dominant in the 19th century, and then entered the Balochistan region of Iran via the state of Balochistan in Pakistan. Appearance: Harmony includes boxes, rows of knobs, tabs and lanterns to provide air guide the air to the air tank by a special mechanism. While tapping each knobe, one or more reeds vibrate and sound is produced. Executive technique: The musician opens and closes the lantern with one hand and push the keys with the other. This instrument is mainly made in India, which has different audio features in different types. The harmonic sound range of Balochistan region is about three octaves. administration: The sound of the harmonica instrument is in accordance with the modified steps of Western Chromatic. Harmony has been used in the performance of the songs "Sot" (Shad Balochi) and is also common in Pakistani folk music.