Kitab al-Musiqa al-Kabir

Illustration from Al-Fārābī (about 870-950): *Kitāb al-mūsīqī al kabīr* Drawing of a musical instrument, called Shahrud

Kitab al-Musiqa al-Kabir (Arabic: كِتٰبَ ٱلمُوْسِيقَىٰ ٱلكَبِيرُ, transl. the Great Book of Music) is a treatise on music in Arabic by the Islamic Golden Era 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.