Columbia subject headings:
Ibn al-Munajjim, ʻAlī ibn Yaḥyá, -888.
Music theory--Arab countries--History--500-1400.
Harvard subject headings:
Music theory--History--500-1400.
Music--Arab countries--History and criticism
Princeton subject headings:
Ibn al-Munajjim, Yaḥyá ibn ʻAlī, 855 or 856-912.
Music--Arab countries--History and criticism.