Classical guitar may vary, but the typical shape is either "modern classical guitar" or that "historic classical guitar" similar to the early romantic guitars of France and Italy. Classical guitar strings once made of gut are now made of such polymers as nylon, with fine wire wound about the acoustically lower (bass side) strings. A guitar family tree may be identified. The flamenco guitar derives from the modern classical, but has differences in material, construction and sound. Today's "modern classical guitar" was established by the late designs of the 19th-century Spanish luthier, Antonio Torres Jurado. The classical guitar has a long history
Classical guitar guitar): the neck of a classical guitar is too wide and the normal position of the thumb used in classical guitar technique do not make that possible. Scores (contrary to "tablatures") do not systematically indicate the string to be plucked (although in most cases the choice is obvious). When an indication of the string is required the strings are designated 1 to 6 (from the 1st the high E to the 6th the low E) with figures 1 to 6 inside circles. The positions (that is where on the fretboard the first finger of the left hand is placed) are