Career
According to Howard Schott, their instruments were popular in the south of France and Spain. In 1843 he patented a piano equipped with sympathetic strings sounding an octave above, an idea that would eventually lead to Blüthner"s 1873 aliquot scaling patent for grand pianos and at the Paris Exposition the following year, where he presented another piano with a "pedal tone" which preceded the "sostenuto mechanism" that Steinway re-introduced in 1874. He succeeded his father Jean-Louis Boisselot in the manufacture of pianos in 1847, a business continued by successive generations of his family until the late nineteenth century.