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).

Discussions and research have been conducted on the harmonization of “dastgah” and melodies in Iranian music, and several books have been published on this topic, including “Armenian Music of Iran” by Ali Naghi Vaziri, “Harmony of Iranian Music” by Farhad Fakhreddini, and “Harmony of Iranian Music” by Ali Ghamssari. A master’s thesis titled “Presenting a Solution for Harmonizing Based on the Structure of Tritone Intervals” was written by Atefeh EinAli in 2014. Additionally, the invention and use of “Even Harmony” by Morteza Hannaneh should be mentioned.

Payam Taghadossi (born in 1989) started his musical education at the age of 4 years with Monika Scherbaum in Bregenz (Austria). At the Conservatory Feldkirch he joined the class of Imke Frank and Martin Merker. Later he studied in Zurich (Switzerland) with Thomas Grossenbacher and Christian Proske, where he 2011 graduated as a Bachelor of Arts in Music Performance. Two years later as the student of Rafael Rosenfeld he received his Master of Arts in Music Performance diploma and later graduated as a Master of Arts in spezialized Music Performance in 2016 from the Hochschule für Musik Basel FHNW.

In an era when almost no trace of contemporary Iranian music can be heard in international concert halls, except (so-called!) avant-garde works that owe their existence solely to the fashionable slogans of the “pseudo-intellectual” crowd who have seized the already meager resources for performing classical music from the true artists of the field, the numerous performances of Farhad Poupel’s works shine as a ray of hope for lovers of sincere musical art. Without resorting to trendy slogans, he has kept the flame of Iranian classical music alive purely through the power of his artistry.

Persian Set: Four Movements for chamber orchestra: Moderato; Allegretto; Lento; Rondo

Henry Cowell, one of the most innovative American composers of the 20th century, was born in 1897. Cowell and his wife visited Iran in 1956 and stayed there the whole winter, upon the invitation by the Iranian Royal Family, when he composed his album “Persian Set” in four movements for chamber orchestra. His composition is expressive of the characteristic quality of the Persian or the Iranian music.

With regard to each polyphonic form, only one specific and distinguished example is analyzed. These polyphonic forms are as follows:

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.

This year marks the fifth anniversary of the passing of Khosrow Jafarzadeh (Khosrow Djafar-Zadeh), a distinguished architect and pioneering researcher of Iranian music, whose contributions to the magazine “Harmony Talk” have left an indelible mark on the field. The absence of this remarkable individual has significantly impacted the expansion and advancement of his theories, which are heralded as some of the most progressive in the history of Iranian music

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).

4.3.1.3 Regarding the great linear distance and the unusual distance between the first and forth fingers, the first finger while playing the doubles of ninth and tenth interval, can be twisted in the knuckle area and the point mentioned in 3.1.2.5 paragraph in relation to the way first finger is placed indicating that the first joint of this finger in back of hand must be in line with the direction of forearm and left hand is not true here.