Kitab al Musiqa al Kabir

Kitab al-Musiqa al-Kabir (Arabic: كتاب الموسيقى الكبير‎‎, English: Great Book of Music) is a treatise on music in Arabic by the Medieval philosopher al-Farabi (872-950/951). The work prescribes different aspects of music such as maqamat, and is believed to be influenced by the Pythagorean theory of harmonic ratios. The book was translated into Hebrew by Joseph ben Judah ibn Aknin.