Sorry if my question is a bit messy. I'm currently writing a paper comparing discussions of music in Arab and Christian Iberian chronicles. While my paper focuses mostly on the Reconquista era (and how the Arabs influenced European musical thought during the Reconquista/Crusade era- drawing heavily on al-Farabi), my research has led me to need to discuss at some length the musician Ziryab, probably the most prominent musician in al-Andalus, if not the Arab world in the 9th century. While plenty has been written on Ziryab (thanks to people such as al-Makkari), I've yet to find an equivalent counterpoint to discuss Christian musical culture in Iberia/France... does such a person exist?