The Iranic dialect of Tabriz
The language of Tabriz, being an Iranian language, was not the standard Khurasani dari. Qatran Tabrizi(11th century) has an interesting couplet mentioning this fact:
بلبل به سان مطربِ بیدل فرازِ گل
گه پارسی نوازد و گاهی زند دری
http://www.reference.com/browse/pahlavi+language%26o%3D10601[پیوند مرده]