various different translations. The medievalist Istvan Frank contended that the lines were not Arabic at all, but instead the result of the rewriting of the original by a later scribe. The theory that the troubadour tradition was created by William after his experience of Moorish arts while fighting with the Reconquista in Spain has been championed by Ramón Menéndez Pidal and Idries Shah. George T. Beech states that there is only one documented battle that William fought in Spain, and it occurred towards the end of his life. Beech adds that William and his father did have Spanish individuals within their extended family, and that while there is no evidence he himself knew Arabic, he may have been friendly with some Europeans who could speak the language. Others state that the notion that William created the concept of troubadours is itself incorrect, and that his "songs represent not the beginnings of a tradition but summits of achievement in that tradition." Most scholars believe that Guido of Arezzo's Solfège musical notation system had its origins in a Latin hymn, but others suggest that it may have had Arabic origins instead. It has been argued that the Solfège syllables (do, re, mi, fa, sol, la, ti) may have been derived from the syllables of an Arabic solmization system Durr-i-Mufassal ("Separated Pearls") (dal, ra, mim, fa, sad, lam). This was first proposed by Meninski in his Thesaurus Linguarum Orientalum (1680). However, there is no documentary evidence for this theory, and no Arabic musical manuscripts using sequences from the Arabic alphabet are known to exist. Henry George Farmer believes that there is no firm evidence on the origins of the notation, and therefore the Arabian origin theory and the hymnal origin theories are equally credible. Improvisational Music in the Arabic Mediterranean region. Ethnomusicologist Ali Jihad Racy talks about the improvisation style of music that is present in much of the Mediterranean world. Racy discusses the regional attitudes towards improvisation music in the Middle East describing that improvisation can suggest casual or untrained or even non-professional music-making. This is held only by certain communities within the Arabic world and can differ from each region or community. Some regions look at improvisation music as the intuitive artistic ability that momentarily expresses the feeling of the player. Other groups tend to view improvisation as though it is the fulfillment of music transcending the classical maqam style or