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.

April 6 marks the anniversary of launching HarmonyTalk.com. Back in 2004, HarmonyTalk was rather a blog dedicated to music. Gradually, however, it found its way to becoming a more sophisticated journal with an intensive but not exclusive concentration on classical music.

Bahman Rajabi, the renowned tonbak (Persian goblet drum) player and educator, passed away at his home at the age of 86 due to a heart condition. He was the founder of a distinctive school of tonbak playing, and his teaching methods have been widely used by instructors of the instrument for decades..

Innovation and Creativity The Enlightenment era championed innovation, creativity, and the relentless pursuit of knowledge, values that resonate prominently in Mozart’s string quartets. Mozart, a luminary of the Enlightenment, used the quartet form as a playground for his inventive spirit, pushing the boundaries of traditional structures and harmonic progressions. Mozart’s innovative approach is evident in…
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At the end of the Qajar era and as Iran entered the power transition period, known as the constitutional era, the Iranian music went through a lot of changes. These changes gained momentum as the students and followers of Ali Naqi Vaziri’s entered the musical scene. These changes greatly influenced designs of instruments, playing methods, singing, composing, etc.

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

Composer and music teacher Ahmad Pejman (1935–2025) passed away on August 29 in Los Angeles, USA, after several weeks of illness. His most recent symphonic work performed in Iran was Land of the Brave (“Sarzameen-e Delavaran”), which was staged in 2017 with the Tehran Symphony Orchestra. According to the family’s decision, his body will be laid to rest in the United States.

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.

Regional music festivals are organized to, firstly, introduce the music of different regions and, secondly, to support its performers. Regional music festivals are held in large cities for various reasons, including the availability of financial and executive facilities and the presence of an audience. However, the organization of these festivals has always been one of the challenging issues of ethnomusicology. The reason is that the presence of regional music performers in large cities places them in a context other than the context they would normally perform in their homes; consequently this change in situation leads to changes in the quality of their performance.

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.