Mansour Zalzal
Manṣūr Zalzal al-Ḍārib , late 8th century - early 9th century, was a musician and composer of Al-Kufa during the Abbasid era. He contributed musical scales that were later named after him and introduced positions within scales on the fretboard of an oud, called wasati-zalzal.
Mansour is credited by the Encyclopedia of Islam with making improvements on the design of the barbat lute, which was then called the ūd shabbūt. He was the Teacher of great musician Ishaq al-Mawsili.
