Regarding the classification of a new instrument in an instrument family, one can point to a number of fundamental issues, one of the most obvious of which is the instrument’s visual features. If we look at how the new instrument has changed compared to its historical versions, the set of visual elements that link the instrument to the Qeychak family becomes apparent. But other characteristics such as the geometric dimensions of the instrument, characteristics of the instrument’s various parts and how they relate to each other, its systematic performance, its sound range (compared to modern versions), the material and color of the sound, the way it is played and the like, can be considered in order to classify the instrument in the Qeychak family.

The perspective that denies any alteration or innovation beneath the realm of Iranian music, and more broadly, the performance and even the structure of Iranian music instruments, stems from the discourse of “tradition-oriented”* and the “return to self” movement in Iranian music. Given that some educators still adhere to this discourse and emphasize the necessity of preserving tradition, a perception is formed among art students that Iranian music, including Radif, lacks dynamism and is confined within a rigid framework.

Simorgh (Simorq) Orchestra was founded by the renowned Iranian composer, Hamid Motebassem, in 2011. Simorgh Orchestra is the largest orchestra featuring Iranian national instruments. Although the orchestra established by Master Hossein Dehlavi, the great Iranian composer, in 1993 was larger than Simorgh Orchestra, it only featured the Iranian plucked string instruments unlike the latter one. The first album which was recorded by the Orchestra, conducted under Motebassem’s baton, was his Simorq based on Zal story from Shahnameh by Ferdowsi, the great Iranian poet.

The alleged similarity between the Iranian and South Korean National Anthems has been a matter of discussion among musicians in Iran for several years. Earlier in 2021, the issue was taken to the media again with not only claims that the anthem is very similar to another song but also the suggestion that its musical content should draw more on the Iranian national music. Some even went to the extent to suggest replacing it with the song “O, Iran” composed by the late Rouhollah Khaleghi. Before delving more into the main issue, it would not go amiss to consider some technical characteristics of the song “O, Iran” composed in 1944.

In the tradition of classical music, it is generally tried to use the same technical terms related to music in all countries. Even in the cultures in which native terms exist to refer to musical terms, usually the better known universal terms are employed.

4.3.1. To practice playing of doubles of notes involving two different fingers, each note is played at separate bows with slow tempo, each note is played perfectly regarding its bass and tenor sounds and then the considered double is played at another bow while considering the resulted sound of the double.

ehrouz Mohammadi, “Daf and its feasts in Ghaderieh’s Tekyeh” mentions that the outer thickness of arch where studs are located, [is] between one to one and a half centimeters (Mohammadi, 2001: 12). The thickness of arch should be gradually reduced from the installation place of rings to skin (Avazeh of Daf) to create a high volume, clear sound from Daf; also, the connection of arch to skin should not be less than one millimeter, because in this case the skin will be torn due to the sharpness of the wood (Mogharab Samadi, 2009: 79-78). The thickness of wood on the skin side is about two to three millimeters (Tohidi, 2002: 79).

Conclusion

“Daf” is one of type of percussion instruments that has a long history and is commonly known as circular instruments (with a rim). In some tribes, Daf was used as the main instrument in festivity and joy ceremonies; in another tribe it was used as the main instrument for war and campaign ceremonies and some others used it for ritual and religious ceremonies.

With regard to each polyphonic form, only one specific and distinguished example is analyzed. These polyphonic forms are as follows:

Iraj (Hossein Khajeh-Amiri), born on January 1, 1933, in Natanz, and one of the most renowned figures in Iranian vocal music, passed away at the age of 94 after several months of illness. He was born into an artistic and cultivated family; his ancestor was a celebrated singer during the era of Nasser al-Din Shah Qajar, and his father, who himself possessed a fine voice and was well-versed in the radifs (modal systems) of Persian music, devoted years to training his son’s voice. In his early youth, Iraj also participated in Ta’ziyeh (religious passion plays) and learned the subtleties of vocal performance step by step from Ta’ziyeh performers who had mastered the radifs and modes.