Abd al-Qadir Maraghi
Abd al-Qadir al-Maraghi b. Ghaybi (Persian: عبدالقادر مراغی (born middle of 14th – died 1435 AD)), was a Persian musician and artist. According to the Encyclopedia of Islam, he was the greatest of the Persian writers on music.
Abd al- Qadir b. GHaybi al-Hafiz al-Maraghi was born in Maragha in about the middle of the 14th century. He had become one of the court minstrels of the Jalayirid Sultan al-Husayn around 1379. Under Sultan Ahmad Jalayirid, he was appointed the chief court minstrel. When Timur captured Baghdad in 1393, he was transported to Samarqand, which was the capital of the Timurid dynasty. In 1399, he was in Tabriz at the service of Timur’s wayward son Miranshah. Abdl al-Qadir was blamed for the erratic conducts of Miranshah, and Timur acted swiftly in order to capture him. But Abd al-Qadir, was forewarned and escaped to the Jalayrid court of Sultan Ahmad in Baghdad. Timur again recaptured Baghdad in 1401 and took Abd al-Qadir back to Samarqand. Abd al-Qadir became one of the brilliant men at the court of Timur’s son, Shahrukh . In 1421, he also wrote a musical treatise (see below) for the Ottoman Sultan Murad II. He died in Samarqand in 1435.
Works on music theory 
Abd al-Qadir was proficient in music, poetry and painting. This made him to be a highly desired artisan amongst the courts of different dynasties. It was due to his musical talent that he was named by his contemporaries as the Glory of the past age. .
Abd al-Qadir is known for his four works on music theory. All three surviving works were written in Persian. His most important treatise on music is the Jami al-Alhan (جامع الالحان) (Arabic for Encyclopedia of Music), autographs of which are preserved at the Bodleian Library and the Nuruosmaniye Mosque Library in Istanbul. The first manuscript of this work was written in 1405 for his Nur al-din Abd al-Rahman was revised by the author in 1413. The second manuscript was written in 1415, carries a dedication to Sultan Sharukh of the Timurid dynasty.
The second major work of Abd al-Qadir is the Persian book Maqasid al-Alhan (Arabic for: Purports of Music)(مقاصد الالحان). It was dedicated to the Ottoman Sultan Murad II.
A third treatise on music, the Kanz al-Tu.af (Treasury of Music) which contained the author's notated compositions, has not survived.
His last work, the Sharh al-Adwar (Commentary on the [ Kitab al-Adwar] of safi al-din al-urmawi)(شرح الادوار), is to be found in the Nuru Othmaniyya Library.
Linguistic significance 
Hamdollah Mustawafi of the 13th century AD mentions the language of Maragheh as "Pahlavi Mughayr" (modified Pahlavi):
Interestingly enough, the 17th century AD Ottoman Turkish traveler Evliya Chelebi who traveled to Safavid Iran also states:
“The majority of the women in Maragheh converse in Pahlavi”.
According to the Encyclopedia of Islam:"At the present day, the inhabitants speak Adhar Turkish, but in the 14th century they still spoke “arabicized Pahlawi” (Nuzhat al-Qolub: Pahlawi Mu’arrab) which means an Iranian dialect of the north western group."
Abd al-Qadir Maraghi not only recorded songs in Persian Language, but also in Arabic, Mongolian, Turkish (Khatai, Chagatay) as well as various regional Iranic dialects (Fahlaviyyat) of Hamadan, Mazandaran, Qazvin, Tabriz, and Rayy. Thus his work gives us a better view of the regional dialects of Iran.
Four quatrains titled fahlaviyyat from Khwaja Muhammad Kojjani (d. 677/1278-79); born in Kojjan or Korjan, a village near Tabriz, recorded by Abd-al-Qader Maraghi. A sample of one of the four quatrains from Khwaja Muhammad Kojjani
همه کیژی نَهَند خُشتی بَخُشتی
بَنا اج چو کَه دستِ گیژی وَنیژه
همه پیغمبران خُو بی و چو کِی
محمدمصطفی کیژی وَنیژه
رُورُم پَری بجولان
نو کُو بَمَن وُرارده
وی خَد شدیم بدامش
هیزا اَوُو وُرارده
- Heinrich von Diez and his Eponymous Albums, David J. Roxburgh, Muqarnas, Vol.12, 1995, 127; "Ghaybi al-Hafiz al-Maraghi, the Persian musician and musical theorist who attended the court of Shahrukh after 1405..".
- Farmer, H.G. "Abd al- Qadir b. GHaybi al-Hafiz al-Maraghi." Encyclopaedia of Islam. Edited by: P. Bearman , Th. Bianquis , C.E. Bosworth , E. van Donzel and W.P. Heinrichs. Brill, 2007. Brill Online. <http://www.brillonline.nl/subscriber/entry?entry=islam_SIM-0091>. quote:", the greatest of the Persian writers on music. Born at Marāg̲h̲a, about the middle of the 8th/14th century, he had become one of the minstrels of al-Ḥusayn, the Ḏj̲alāʾirid Sultan of ʿIrāḳ, about 781/1379."
- "حمدالله مستوفي هم كه در سدههاي هفتم و هشتم هجري ميزيست، ضمن اشاره به زبان مردم مراغه مينويسد: "زبانشان پهلوي مغير است مستوفي، حمدالله: "نزهةالقلوب"، به كوشش محمد دبيرسياقي، انتشارات طهوري، 1336 Mostawafi, Hamdallah. Nozhat al-Qolub. Edit by Muhammad Dabir Sayyaqi. Tahuri publishers, 1957.
- Source: Mohammad-Amin Riahi . “Molehaazi darbaareyeh Zabaan-I Kohan Azerbaijan”(Some comments on the ancient language of Azerbaijan), ‘Itilia’at Siyasi Magazine, volume 181-182. رياحي خويي، محمدامين، «ملاحظاتي دربارهي زبان كهن آذربايجان»: اطلاعات سياسي - اقتصادي، شمارهي 182-181 Also available at: 
- V.Minorsky, “Margha” in Encyclopaedia of Islam. Edited by: P. Bearman , Th. Bianquis , C.E. Bosworth , E. van Donzel and W.P. Heinrichs. Brill, 2009. Brill Online."At the present day, the inhabitants speak Adhar Turkish, but in the 14th century they still spoke “arabicized Pahlawi” (Nuzhat al-Qolub: Pahlawi Mu’arrab) which means an Iranian dialect of the north western group."
- Dr. A. A. Sadeqi, "Ash'ar-e mahalli-e Jame' al-alHaann," Majalla-ye zaban-shenasi 9, 1371./1992, pp. 54-64/ 
- Fahlaviyat in Encyclopedia Iranica by Dr. Ahmad Taffazoli
Current Performances 
See also 
- List of Persian poets and authors
- Persian literature
- Persian literature
- Persian traditional music
- Persian culture
- Persian Symphonic Music
- List of Iranian composers