Tales"), and Ayyam al-arab ("The Battle-Days of the Arabs"), which mentions 1700 days of the pre-Islamic tribal battles and was in circulation only in Andalusia. The reports about music, musicians and singers: the aforementioned Manajib al-khisyan ("The Noble Eunuchs"), Akhbzr Jahza al-Barmaki ("The Reports concerning Jahza al-Barmaki"), al-Mamalik al-shu'ara ("The Slave Poets"), Adab al-samz ("The Etiquettes of Listening to Music"), and Risala fi 'ilal al-nagham ("The Treatise on the Rules of Tones"). There are two works, only mentioned by al-Tusi: Kitab ma nazala min al-Qur'an fi amir al-mu'minīn wa-ahl baytih 'alayhim al-salam ("The Book about the Qur'anic Verses Revealed regarding the Commander of the Faithful and the People of His Family, Peace upon Them") and Kitab fihi kalam Fatima alayha al-salam fi Fadak ("The Book concerning the Statements of Fāṭima, Peace upon Her, regarding Fadak"). Should the attribution of these two works to al-Isfahani be correct, together with the Maqatil al-Talibiyin, they reveal al-Isfahani's Shi'i partisanship. Works Al-Isfahani is best known as the author of Kitab al-Aghani ("The Book of Songs"), an encyclopaedia of over 20 volumes and editions. However, he additionally wrote poetry, an anthology of verses on the monasteries of Mesopotamia and Egypt, and a genealogical work.Kitāb al-Aġānī () 'Book of Songs', a collection of Arabic chants rich in information on Arab and Persian poets, singers and other musicians from the 7th to the 10th centuries of major cities such as Mecca, Damascus, Isfahan, Rey, Baghdād and Baṣrah. The Book of Songs contains details of the ancient Arab tribes and courtly life of the Umayyads and provides a complete overview of the Arab civilization from the pre-Islamic Jahiliyya era, up to his own time. Abu ‘l-Faraj employs the classical Arabic genealogical device, or isnad, (chain of transmission), to relate the biographical accounts of the authors and composers. Although originally the poems were put to music, the musical signs are no longer legible. Abu ‘l-Faraj spent in total 50 years creating this work, which remains an important historical source. The first printed edition, published in 1868, contained 20 volumes. In 1888 Rudolf Ernst Brünnow published a 21st volume being a collection of biographies not contained in the Bulāq edition, edited from manuscripts in the Royal Library of Munich.Maqātil aṭ-Ṭālibīyīn (}), Tālibid Fights, a collection of more than 200 biographies of the descendants of Abu Talib ibn Abd al-Muttalib, from the time of the Prophet Muhammad to the writing of