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).

With this description, we have automatically included a criterion called “History”, Until we know the time of the creation of a work of art, we cannot judge whether it has been easy to create or not. Suppose that, in a historical study, we find a musical work that is similar in compositional techniques (including form, melody, context, and orchestration) to a minor work of the nineteenth century; however, our research proves that, this work dates back to 200 years prior to that date. Can we still consider this work insignificant? Definitely not! So this is where the first use of history-based judgment comes into play.

Golnoush Khaleghi (1941-2021), a Washington-based Persian musician and the daughter of the contemporary Persian (Iranian) composer and theoretician Rouhollah Khaleghi (1906-1965) founded a musical center called RKAC to keep the name and the work of her father alive.

The name of Maestro Hassan Kassai is so vehemently intertwined with Ney (Persian reed flute) that one cannot imagine one without the other immediately coming into mind. Ney is one of the instruments which went through a lot of ups and downs in the history of the Iranian music since the time of Sassanid kings to the time when shepherds found playing it consoling when they took their cattle for grazing. However, Nay could never demonstrate its main capacities to gain a stable position among the musicians and the people like other instruments including Oud, Tar, Santour, all sorts of bowed string instruments and plucked string instruments.

The album “Guitar Memories” consists of the performance of baroque to recent era masterpieces, by Mehrdad Mahdavi, and is published by Tanin-e Honar Publication.

In this album there are pieces composed and arranged by artists such as: Sylvius Leopold Weiss, Johann Anton Logy, Fernando Sor, Yuquijiro Yocoh, Leo Brouwer.

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.”

Iranian pianist Layla Ramezan has always sought to create a connection between her Persian origin and the contemporary music which she encounters daily. Sound, phrasing, a particular sense of rhythm and a refined understanding of the “time of musical development” are the foremost qualities of her interpretations. Her musical and pianistic education began in Tehran at the age of 8 with Mostafa-Kamal Poortorab. Having moved to Paris and received a scholarship from Albert Roussel Foundation, she integrated the classes of Jean Micault and Devi Erlih at the Ecole Normale de Musique de Paris Alfred Cortot, where she received a Diplôme de Virtuosité in piano performance and chamber music.

Rouhollah Khaleghi was the master of composing beautiful melodies. He was the premier of the course of history which was first established by Ali Naghi Vaziri and which improved the Iranian music from simply a gathering music to the classical music of the country. First efforts to compose independent and instrumental music can be also traced in Khaleghi’s works.

The year 2020 marks the 10th anniversary of Evlin Baghcheban’s death. She played a crucial role to promote opera and choral music in Persia (Iran). Born to an Assyrian-French family in Turkey, she studied singing and piano at the Ankara State Conservatory. In 1950 Evlin married the Persian composer and fellow student Samin Baghcheban and moved to Tehran.

The Roudaki Foundation presented the permanent conductor of the National Orchestra (Orchestr Melli), Homayoun Rahimian, in a ceremony, and finally, after four years, the national orchestra found a permanent conductor. Homayoun Rahimian is the fourth permanent conductor of this orchestra after Farhad Fakhreddini, Bardia Kiaras, and Fereidoun Shahbaziyan. He, who has previously had experience of conducting concerts besides being Meister’s concert of this orchestra, performed the concert “Autumns” on the 20th of Tir, performing works by Rouhollah Khaleqi, Javad Ma’roufi, and Hossein Dehlavi.