A carved and gilt harp, maker Errard, French, first quarter of the 19th century, Sebastien Erard (1752-1831) is considered the father of the modern harp, and with reason. His two major contributions to the construction of the instrument are still the basis of today's models: the mechanism of forked discs that shorten the vibrating length of the strings by a semitone; and the double action, which allows the harpist to play in all keys. The Erard firm's hegemony resulted not only from the evident musical and technical superiority of these inventions, but also from their ambition to market these instruments across the globe, height 163 cm, width 75 cm