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).

In addition to the above-mentioned, polyphony can be also formed when a melody is performed by several singers in different ambiances or different sound registers according to their physiologic abilities. An example of this has been performed in rituals of Khanqah of Ghaderi darawish of Mahabad[i].

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..

Violin players should always pay attention to the proper position of the left thumb and other points related to it and to its joining point to the palm.

Tajvidi thought of studying harmony and orchestration with Houshang Ostvar (who was eight years younger than him) at a time when he had gained a reputation among musicians. His humbleness, making him willing to kneel before the scholars at any age and position, became the key to his scientific success. After this period, Tajvidi made some of his works polyphonic, the most prominent of which is “Burn” set to a poem by Abdullah Ulfat. However, his ability to make his works polyphonic was not so great to make him self-sufficient; so he depended on musicians such as Farhad Fakhreddini, Fereydoun Naseri, Kambiz Roshanravan, Fereydoun Shahbazian and Morteza Hananeh for the arrangement of his compositions.

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.

The world of music has unparalleled respect for Bach. Bach is considered the spiritual father of classical music; Bach’s great position is due not only to his great achievements in the fields of harmony, counterpoint, and compositional sciences but also to his respect for and adherence to the artistic principles of classical music. In the history of classical music, it is recorded that Bach walked about fifty kilometers to listen to the music played by the great German organist Dieterich Buxtehude, and this is the path that every idealistic classical music student should walk.

“Our ancestors believe powerful blows upon the Daf scatters evil spirits of disease and distress to create a clean and holy space filled with health and prosperity. Adding tools to Daf increases this instrument’s purification, spreading, and summoning powers of evil forces and goddesses. Daf was mostly depicted by red, color of blood, in ancient times or sometimes it was depicted with green, the color of plants and nature. There were probably some mysterious designs painted upon the wooden body and frames of these instruments just like today” (Pahlavan, 2013: 44).

Tehran Flute Choir is a 40-member orchestra of Iran’s best flutists; Iran’s best flutists? Yes! If you write down the names of the greatest Iranian flute players who participate at concerts and contribute to academic centers in Iran, you will see that most of them are among the choir’s members.

Davoud Pirnia, writer and musicologist was the founder of “Golha” (Flowers of Persian Song and Music) programs on Tehran Radio (1956-1966). He received his early education from his father, Hassan Pirnia (Moshir al-Douleh), and several tutors of the time (Taraghi, interview, July 1989) and continued his studies at Saint Louis School in Tehran and then in Switzerland and graduated in law. While studying law, Pirnia got acquainted with European classical music. Upon returning to Iran, he was employed by the Ministry of Justice and founded the Lawyers’ Guild. Then he was transferred to the Ministry of Finance and established the Department of Statistics in this ministry. Later, he became the head of the state inspection office at the Prime Ministry; he was, then, promoted to the position of the Deputy Prime Minister (Navab Safa, interview, August 1999)