As a leading musician of his time, he played an important role in the development of mugham art.
After Ali Shirazi brought Iranian tar to Karabakh, he mastered this art and became known as a tarzen throughout the Caucasus.
[3] Mirza Ali Asgar was previously honored as a court musician in the palace of Khurshidbanu Natavan's father, Mehdigulu Khan, and for many years he accompanied singers such as Mirza Huseyn, Hasanche, Keshtazli Hashim, Haji Husu, and Mashadi Isi in the tar.
Mirza Ali Asgar also traveled to Near Eastern countries and performed as a tarzan in the gatherings organized in the palace of Iranian ruler Naser al-Din Shah Qajar.
[3] Mirza Ali Asgar deeply studied the music of Azerbaijan, revealed its unique features and interpreted its essence and taught it to musicians.