Kutb-i Nâyî Osman Dede’ye Göre İran Klasik Müziğinde “Heft Destgâh”
“Heft Destgah” System in Iranian Classical Music According to Nayî Osman Dede

Summary/Abstract: As the science and art of music have been in constant change due to various controversies throughout history, Iranian classical music has also been changed normally. Iranian music, in which the pre-Islamic "rah" instruction was applied, was replaced by the "advar" and "maqam" systems after Islam. This operating system has been changed again and is now known as "destgah". The reasons for the transition of the "Heft (seven) Destgah" system, its historical process, the concept and why it was seven have not been met with any clear explanation in the musical tracts and historical sources. The results of the work of musicologists and researchers of our time also have not been given a definitive explanation. According to our research on Destgah, the oldest explanation is found in Osman Dede's Persian verse Rabt-ı Tagyîrât-ı Mûsikî, written on the subject of music. Osman Dede quoted the system applied in Iran with the phrase "Heftgane" (seven). In this article, after the information about Iranian music and the "destgah" system, Osman Dede's life, sources and his comments about Iranian music and the "destgah" system in Rabt-ı Tagyîrat-ı Musiki are included and evaluated.

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