The main instrument you see is the Kanun, a Middle Eastern zither that has existed since the earliest civilizations. The name comes from the Greek word "Kanon" for law. It has different varieties depending on the country of origin and is played by plucking the strings with a plectra on the index fingers. Middle Eastern instruments are usually tuned to a more complex scale than western music that involves more half-tones and quarter tones that give their music those distinct melodies.
Source: Exotic Music Shop