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 types of hurdy-gurdy, notably the French "vielle à roue" ('fiddle with a wheel') and the Hungarian "tekerőlant" ("tekerő" for short), makers have added a buzzing bridge—called a "chien" (French for dog) or "recsegő" (Hungarian for "buzzer")—on one drone string. Modern makers have increased the number of buzzing bridges on French-style instruments to as many as four. This mechanism consists of a loose bridge under a drone string. The tail of the buzzing bridge is inserted into a narrow vertical slot (or held by a peg in Hungarian instruments) that holds the buzzing bridge in place (and also serves as a