In Mesopotamia a new form of harp came into existence. Differing from the arched harp in design. The oldest known picture can be attested to the beginning of the 2nd millennium BC. The angular harp has a vertical sound-box and a horizontal carrying arm. Strings are stretched from the sound box to the carrying arm. It usually has more strings then the arched harped.
This type of harp became popular over time due to construction and portability. This type of harp proved successful finding its self from Mesopotamia to China, Japan and as far as Spain in the west. Such harps of this type are still found. From Georgia in the caucasus to India, Siberia and Indonesia.