Mirza Abdollah, a prominent tar and setar master and one of the most respected musicians of the court of the late Qajar period, is considered a major influence on the teaching of classical persian music in homeland’s contemporary conservatories and universities. Radif, the repertoire that he developed in the 19th century, is the oldest documented version of the seven dastgah system, and is regarded as a rearrangement of the older 12 maqam system.