Editing Piano (section)

===Specialized===
[[File:Steinway piano - Duo-Art.ogv|thumb|left|thumbtime=2:30|Player piano from 1920 ([[Steinway]])]]

The [[toy piano]], introduced in the 19th century, is a small piano-like instrument that generally uses round metal rods to produce sound, rather than strings. The US [[Library of Congress]] recognizes the toy piano as a unique instrument with the subject designation, Toy Piano Scores: M175 T69.<ref>{{Cite book|url=https://books.google.com/books?id=-AW2CfjJ0vQC|title=Library of Congress Subject Headings|date=2003|publisher=Library of Congress|language=en}}</ref>

In 1863, [[Henri Fourneaux]] invented the [[player piano]], which plays itself from a [[piano roll]]. A machine perforates a performance recording into rolls of paper, and the player piano replays the performance using pneumatic devices. Modern equivalents of the player piano include the [[Bösendorfer]] CEUS, [[Disklavier|Yamaha Disklavier]] and QRS Pianomation,<ref>{{cite web|title=PNOmation II|url=https://www.qrsmusic.com/PMII.asp|publisher=QRS Music Technologies|access-date=6 July 2014|archive-url=https://web.archive.org/web/20140714205014/https://www.qrsmusic.com/PMII.asp|archive-date=14 July 2014|url-status=live}}</ref> using solenoids and MIDI rather than pneumatics and rolls.

A [[silent piano]] is an acoustic piano having an option to silence the strings by means of an interposing hammer bar. They are designed for private silent practice, to avoid disturbing others.

[[Edward Ryley]] invented the [[transposing piano]] in 1801. This rare instrument has a lever under the keyboard to move the keyboard relative to the strings, so a pianist can play in a familiar key while the music sounds in a different key.

[[File:Minipiano 'Pianette' model with matching stool.jpg|thumb|right|The minipiano 'Pianette' model viewed with its original matching stool: the wooden flap at the front of the instrument has been dropped revealing the tuning pins at the front.]]
The [[minipiano]] is an instrument patented by the Brasted brothers of the Eavestaff Ltd. piano company in 1934.<ref>{{cite web |url=http://www.piano-tuners.org/history/eavestaff.html |title=History of the Eavestaff Pianette Minipiano |publisher=Piano-tuners.org |access-date=2014-01-27 |archive-url=https://web.archive.org/web/20141001051139/http://www.piano-tuners.org/history/eavestaff.html |archive-date=2014-10-01 |url-status=live }}</ref> This instrument has a braceless back and a soundboard positioned below the keys—long metal rods pull on the levers to make the hammers strike the strings. The first model, known as the ''Pianette'', was unique in that the tuning pins extended through the instrument, so it could be tuned at the front.

The [[prepared piano]], present in some contemporary art music from the 20th and 21st century is a piano which has objects placed inside it to alter its sound, or has had its mechanism changed in some other way. The scores for music for prepared piano specify the modifications, for example, instructing the pianist to insert pieces of rubber, paper, metal screws, or washers in between the strings. These objects mute the strings or alter their timbre.

Some Viennese fortepianos incorporated percussion effects, brought into action by levers. These would be used in pieces such as Mozart's [[Piano Sonata No. 11 (Mozart)|''Rondo alla Turca'']]. 

The [[pedal piano]] is a rare type of piano that has a [[pedal keyboard]] at the base, designed to be played by the feet. The pedals may play the existing bass strings on the piano, or rarely, the pedals may have their own set of bass strings and hammer mechanisms. While the typical intended use for pedal pianos is to enable a keyboardist to practice [[pipe organ]] music at home, a few players of pedal piano use it as a performance instrument.

[[Wadia Sabra]] had a microtone piano manufactured by [[Pleyel]] in 1920.<ref>{{cite book|title=Les Cahiers de l'Oronte|year=1969|page=82}}</ref> [[Abdallah Chahine]] later constructed his quartertone "Oriental piano" with the help of Austrian [[Frederick Hoffmann|Hofmann]].<ref>{{cite web|language=fr|title=Stéphane Tsapis, le piano oriental|date=13 October 2019 |url=https://www.francemusique.fr/emissions/open-jazz/stephane-tsapis-le-piano-oriental-77501}}</ref><ref>{{cite book|title=Local Music Scenes and Globalization: Transnational Platforms in Beirut|author=Thomas Burkhalter|year=2014|url=https://books.google.com/books?id=H4ccfrBTVGkC|page=262|publisher=Routledge |isbn=9781135073695}}</ref>