Creating sound continuity between two notes in the source and destination positions when left hand position changes and “two different finger numbers” are involved is called portamento. Portamento can be performed on single string or two neighboring strings and with hand moving on fingerboard either upward or downward.

Two choirs alternatively perform Veŝ Tavaré Na avaz (Transcription 5). The second group starts the avaz before the first group finishes it; consequently, two different voices coincide (Transcription 5, staves 2 and 5).

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.

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 late 18th century was marked by profound societal changes across Europe, characterized by the rise of the bourgeoisie and the reshaping of musical patronage. Composers like Mozart responded to these shifts by adapting their compositional styles to align with the tastes and sensibilities of the emerging middle class. This article seeks to explore this phenomenon through an analysis of Mozart’s K. 499 quartet, also known as the “Hoffmeister” quartet, and his Prussian quartets, alongside the works of his contemporaries. By examining the evolution of the string quartet genre within the context of changing social structures and aesthetic preferences, this study aims to shed light on the dynamic relationship between music and society.

Finding a way to harmonize the Iranian music has been the subject of controversy among Iranian musicians for a long time. Some believe in the creation of harmonies for Iranian music based on a method which is similar to the tierce harmony; while others have either selected or invented some other methods. There are also some musicians who do not basically agree with the harmonization of the Iranian music.

Mr. Mohsen Ghanebasiri, author and critic in the field of economy, culture and arts, as the next speaker, highlighted the role of arts, specially the music, in development of societies: “As far as the individual upbringing is concerned, a newborn baby is absolutely dependent. The relation between the baby and the parents is based on orders. There is lots of relativity in these orders; therefore, they are political orders. In the economy, however, the relations are mutual and based on common logic; hence, the formation of the concepts of democracy and individuality.

One of his works was the translation of Harmony, which was carried out with the help of Mozayyan al-Dowleh, and included a pamphlet based on which he used to teach the subject to the students of the school of music; the pamphlet was never published. It was, in fact, a kind of simple harmony for the piano with no quadriads, it rather featured the engagement of both the right hand and the left hand which was being taught at the music school for the first time. Salar-Mo’azez also composed military marches and hymns for schools, which he harmonized to be performed and piano. Likewise, he used to compose for military orchestras.

Fantasia on One Note was my first professional work for piano, which had its world premiere by the great pianist Peter Jablonski in Sweden, and it has been performed by various pianists in the UK, Germany, France, and the Czech Republic. The recording of this work has also been broadcast on the Dutch public radio, NPR Radio 4.

In this project, my specialized responsibility  was the basic drawings of the desired instrument with the help of engineering and mechanical software.  I have also the carried out phases related to engineering designs, related variables, and volume and weight calculations under Mr. Ziaei’s direct supervision from the very beginning. Regarding the challenges of this work, suffice it to say that the set of designs for the instrument lasted more than 9 months in the final stage of the project only.