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).

The year 1396 (21 March 2017-20 March 2018) was the most sorrowful year for HarmonyTalk journal. One month after holding HarmonyTalk’s 13th establishment anniversary in Mohsen Ghanebasiri’s house in Tehran in April 2017, he untimely passed away. Mohsen Ghanebasiri was the prominent HarmonyTalk author.

Khosrow Djafarzadeh, musicologist and architect, who was also one of the main authors of HarmonyTalk journal passed away on 15 July 2019.

1.5.1.3.sometimes, a player, due to different reasons, may decisively want to play continuously two notes with a half-step by means of the same finger, in such a case, it’s necessary to open the interior curve of the finger like a spring. Naturally coming back, the curve of finger should be closed and the finger should become curved shape again (see paragraph 3.1.2.1).

The term “School of Vaziri” is often used in writings on Iranian music, but the exact meaning of the term is not clear; some of the authors have used the term to only refer to the group of Vaziri’s students, including a large group of his conservatory students and his Tar students such as Abolhassan Saba, Rouhollah Khaleghi, Ahmad Foroutan Rad, Hossein Sanjari, Heshmat Sanjari and others. But can we consider all Vaziri’s students as followers of his school of thought? This is definitely a mistake, because we know that some of Vaziri’s students have chosen a completely different path than that of Vaziri.

B. applying force: the force needed for putting finger on finger board is applied through finger tips and using the rest of hand set especially wrist is not allowed. To practice this, it is possible to hold violin without the bow and throw the fingers on the finger board from 1-2cm distance; apply force only through finger tips.

Gholam Reza Khan Minbashian, a.k.a Salar-Mo’azez, was a pioneer in several domains in the history of the Iranian music. He is recognized as the first Iranian musician who was educated in classical music. He is also the first Iranian the score of whose works were published in Europe. He is the first Iranian to have launched courses on Western classical music and was also the first Iranian teacher of classical music. Moreover, he is the first founder of a string orchestra in Iran, the first author of the Iranian Radif which was available in oral form. Minbashian is also the first Iranian who studied music in Europe.

Shaahin Mohajeri, the award-winning Iranian microtonal compose, has contributed to The Art of Silence is an international project which features unpublished pieces by microtonal composers from Iran, Japan, the United States, and other countries.

On June 19, 2021 , young Iranian composer and pianist, Farhad Poupel’s piece, Road to Bach, was performed at the prestigious Suntory Hall by the great Japanese pianist, Kotaro Fukuma. The piece was commissioned by Kotaro Fukuma to have its world premiere in Suntory Hall during a concert by the same name.

UnTwelve Non-profit Organization announced the results of its 2014/2015 composition competition on January 28, 2015. Shaahin Mohajeri, an Iranian Tonbak player, microtonalist, acoustician and composer, was awarded the second prize for his piece “Castle of Babak.”