The (Arabic: Kitāb al-Mūsīqā al-Kabīr ) by the 10th-century philosopher Al-Farabi is a foundational treatise on music theory, acoustics, and instruments. Accessing the Full Text (PDF)
"The Great Book of Music" (Kitab al-Musiqi al-Kabir) is Alfarabi's most famous and influential work on music theory. Written in Arabic, this comprehensive treatise covers various aspects of music, including the philosophy of music, musical instruments, melody, harmony, and rhythm. The book is divided into several chapters, each addressing a specific aspect of music theory. the great book of music alfarabi pdf portable