1700, Pianoforte

The first piano, pianoforte, described as an ‘arpicimbalo ,’ built by Bartolomeo Cristofori (1655-1732) while he was appointed ‘to the Florentine court of Grand Prince Ferdinando de’ Medici in 1688,’ vastly improved upon the harpsichord and clavichord, ‘with hammers and dampers and two 8′ choirs, having a range of four octaves.’
and Piano (Forte). 3
His innovations included an “escapement” mechanism to prevent the hammers from dampening the strings, a “backcheck” to ensure the hammer did not fall against the strings after being struck, and a dampening mechanism to silence strings not in use. Other technical advancements included isolating the soundboard from its stress-bearing parts and using thicker strings with increased tension. These numerous refinements expanded the range and versatility of the sound, affording the player an instrument responsive to touch, capable of dynamic gradations.
Page Sources
- O’Brien, Michael. "Cristofori, Bartolomeo." Oxford Music Online. Oxford University Press, 2007 – 2015. Web. 14 Sept. 2015.
- Robinson, J. Bradford. "Pianoforte: History of the Instrument." Oxford Music Online. Oxford University Press, 2007 – 2015. Web. 14 Sept. 2015.
1728, Stein

Johann (Georg) Andreas Stein (1728 – 1792), German keyboard instrument maker and organist, whose many experimental contributions to the piano rival its inventor, Bartolomeo Cristofori.
Page Sources
- Latcham, Michael. "Stein, Johann (Georg) Andreas." Oxford Music Online. Oxford University Press, 2007 – 2015. Web. 14 Sept. 2015.
1730, Kirkman

Kirkman established by German born Jacob Kirchmann (1710 – 1792) (Changed his name to Kirkman) in London – Builder of harpsichords and pianos.
Page Sources
- "Kirkman." Antique Piano Shop. Antique Piano Shop, n.d. Web. 14 Sept 2015.
- Palmieri, Robert, ed. The Piano: An Encyclopedia. 2nd Edition. New York: Routledge, June 1, 2004. Google Books. Web. 14 Sept. 2015.
1748, Stein Apprentice
Johann (Georg) Andreas Stein believed to have been an apprentice at the Silberman workshop in Strasbourg (1748 – 1749).
Page Sources
- Latcham, Michael. "Stein, Johann (Georg) Andreas." Oxford Music Online. Oxford University Press, 2007 – 2015. Web. 15 Sept. 2015.
1768, Bach Zumpe Recital
In London, at the age of 33, J.C. Bach performed the first public recital on a piano, a square grand built by Johannes Zumpe.
1775, Behrent's Forte

It is believed that John Behrent (a German or Swiss immigrant) from Philadelphia, Pennsylvania built the first pianoforte in the United Colonies, soon to be United States of America. The Revolutionary War of Independence presumably preempted any further development of Mr. Behrent manufacturing musical instruments.
John Behrent, Joiner and Instrument Maker, living in Third-street continued, in Campington, directly opposite Coates's Burying-ground, Has just finished for sale, an extraordinary fine instrument, by the name of Piano Forte, of Mahogany, in the manner of an harpsichord, with hammers, and several changes: He intends to dispose of it on very reasonable terms; and being a master in such sort of work, and a new beginner in this country, he requests all lovers of music to favour him with their custom, and they shall not only be honestly served, but their favours gratefully acknowledged, by their humble servant, John Behrent.
Page Sources
- Drummond, Robert Rutherford, Ph.D. Early German Music in Philadelphia. New York: University of Pennsylvania, D. Arthur & Company, publishing agents, 1910. Google Books. Web. 27 Sept. 2019.
1777, Érard
Érard built his first five-octave bichord piano (presumably based on the Zumpe Square) for the Duchesse de Villeroy.
Page Sources
- Macnutt, Richard. "Erard." Oxford Music Online. Oxford University Press, 2007 – 2015. Web. 14 Sept. 2015.
1777, Stein Praise From Mozart
Mozart praised the Stein piano for its knee-levers, allowing the composer to operate the dampers without removing his hands from the keyboard; and also for their escapement, which the piano maker had not quite perfected.
In a letter to his father, Leopold, he wrote:
In whatever way I touch the keys, the tone is always even. It never jars, it is never stronger or weaker or entirely absent; in a word, it is always even. It is true that he does not sell a pianoforte of this kind for less than three hundred gulden, but the trouble and the labour which Stein puts into the making of it cannot be paid for. 1
Page Sources
1779, Érard
Érard built a harpsichord known as the clavecin mécanique. Soon after he started successfully marketing his five-octave pianos.
1781, House Érard
Overwhelmed by all the requests, Érard and his brother, Jean-Baptiste Érard (1749 – 1826), opened a shop together, eventually calling it Érard Fréres (also known as the house of Érard). Over the years, Érard obtained numerous patents on the pianoforte and harp.