Its body is composed of two bowls of different size and is generally made from mulberry trees. The göğüs section is covered with a menbrane taken from the heart of water buffaloes or cattle. Sap section is from hard wood and fishline pitches are tied onto it.
There are two main groups of strings on tar. Those in the first group are used in playing the tune and consists of three groups of two strings. The other group of strings are called Kök and Zengi and are tuned according to the mode to be used and enhance the tone.