In heterophonic variant, two performers perform a single melody simultaneously and change it. Performing and changing a single melody simultaneously by two performers leads to the coincidence of different voices.

Ashura Opera was composed by Behzad Abdi, the Iranian composer, in 2008 based on librettos compiled by Behrouz Gharib. The main source for the libretto is poems by Mohtasham Kashani, a sixteenth century Iranian poet.

The collaboration between Mozart and Haydn blossomed during the late 18th century in Vienna, a city that served as the epicenter of musical innovation. Amidst this vibrant cultural milieu, the two composers developed a profound friendship that extended beyond mere professional admiration. This connection is reflected in the six string quartets dedicated by Mozart to Haydn, aptly known as the “Haydn Quartets.”

In response, it should be said that it is better for the national anthem of a country to use the musical material exclusive to that country; however, some problems might come up in doing so the most important of which include: lack of familiarity of other countries’ music performer with the concerned country’s specific music intervals and special musical technique; and secondly, the strangeness of that music to the foreign listener.

The National Instruments Orchestra of Iran performed its first concert amid much hope and anxiety on July 18, 2015. The Orchestra is founded by Roudaki Cultural and Arts Foundation which is a semi-private foundation in Iran. The Arts Director for the National Instruments Orchestra of Iran is cand the Orchestra Executive Director is Sadjad Pourghand.

Despite the fact that Iranian folk music (regional music of Iran), like the Radif of Iranian traditional music, is monophonic and follows heterophony in principal, we experience polyphonic forms, albeit, majorly unconscious.

Santour:
Nine-bridge and twelve-bridge Sanours were both used until the early Pahlavi dynasty. However, as Faramarz Payvar devised new methods for playing the nine-bridge Sanour, this variety of the instrument which was hammered by felted sticks became popular.

Farshad Sanjari, one of the most renowned Iranian conductors in the 1970s in Iran died after fire broke in his apartment in Vienna on November 22, 2019. Farshad Sanjari was not involved in politics; however, he was one of the victims of the Iranian Islamic Revolution in 1979. After the victory of the Islamic Revolution, his name was never seen as the conductor of any programmes.

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.

In the few days prior to the New Iranian year (March 2015), the news of the revival of Tehran Symphony Orchestra under Ali (Alexander) Rahbari’s conductorship was announced. Ali Rahbari, who served as assistant to Herbert von Karajan in Berlin Philharmonic Orchestra at a very young age, was also invited to conduct Tehran Symphony Orchestra in 2005; however, the election of Mahmoud Ahmadinejad’s government put an end to his collaboration with this Orchestra. Recently, it was announced that Rahbari is invited to conduct an orchestra in the U.S.