Hurdy-gurdy twenty-three different forms, and there is still no standardized design today. The six-stringed French "vielle à roue" is the best known and most common sort. A number of regional forms developed, but outside France the instrument was considered a folk instrument and there were no schools of construction that could have determined a standard form. There are two primary body styles for contemporary instruments: guitar-bodied and lute-backed. Both forms are found in French-speaking areas, while guitar-bodied instruments are the general form elsewhere. The box form of the "simphonia" is also commonly found among players of early music and historical re-enactors.
Hurdy-gurdy originated from fiddles in either Europe or the Middle East (e.g., the rebab instrument) some time before the eleventh century A.D. The first recorded reference to fiddles in Europe was in the 9th century by the Persian geographer Ibn Khurradadhbih (d. 911) describing the lira ("lūrā") as a typical instrument within the Byzantine Empire. One of the earliest forms of the hurdy-gurdy was the organistrum, a large instrument with a guitar-shaped body and a long neck in which the keys were set (covering one diatonic octave). The organistrum had a single melody string and two drone strings, which ran over