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Piano

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The piano is a versatile keyboard instrument used for solo and ensemble performances.

D274
D274

It is essential for composing, songwriting, and rehearsals across many genres. Musicians play classical, jazz, traditional, and popular music on its keys. A person who specializes in playing this instrument is called a pianist. Most modern pianos feature a row of 88 black and white keys.

PianoRange
PianoRange

These keys are tuned to a chromatic scale using equal temperament. While most have 88 keys, some makers like Bosendörfer and Stuart & Sons create different versions. The piano's ability to play both softly and loudly makes it a centerpiece of musical expression.

Sound production in a piano relies on a complex mechanical action.

Upright piano inside
Upright piano inside

When a pianist depresses a key, it activates a mechanism that strikes internal strings. These strings are hit by wooden hammers coated in soft felt. The vibration from the strings travels through a bridge to a soundboard. This soundboard amplifies the acoustic energy by coupling it to the air. Most notes utilize three strings to create sound. In the bass section, the number of strings graduates from three down to two or one.

To stop the sound, a damper rests on the string when the key is released.

There are two primary physical forms of the piano: the grand and the upright.

Steinway & Sons concert grand piano, model D-274, manufactured at Steinway's factory in Hamburg, Germany
Steinway & Sons concert grand piano, model D-274, manufactured at Steinway's factory in Hamburg, Germany

The grand piano is often preferred in professional venues. It offers superior sound quality and more precise control over the keys. Because of its size and higher cost, the upright piano is more common in homes. The upright version is more compact and budget-friendly for many users.

Minipiano 'Pianette' model with matching stool
Minipiano 'Pianette' model with matching stool

Both types allow for expressive playing through the use of pedals at the base.

Pedals provide the pianist with advanced control over how notes behave.

Steinway grand piano - pedals
Steinway grand piano - pedals

The most common is the sustain pedal, which lifts all the dampers off the strings. This allows the notes to continue ringing even after the keys are released. Using this pedal helps pianists connect sounds and create a colorful sonority. This technique allows for the overlay of different musical layers.

DisklavierPlayer
DisklavierPlayer

Without these pedals, the instrument would sound much more staccato or detached. The ability to sustain notes changed how composers wrote music for the instrument.

The piano evolved from several earlier keyboard and stringed inventions.

CristoforiPiano1726LeipzigKeyboardView
CristoforiPiano1726LeipzigKeyboardView

The Ancient Greek hydraulis, a type of pipe organ, was an early keyboard ancestor. In the Middle Ages, hammered dulcimers from the Middle East introduced struck strings to Europe. By the 17th century, the clavichord and harpsichord were well-developed. A clavichord uses tangents to strike strings, while a harpsichord mechanically plucks them with quills. The piano combined the volume of the harpsichord with the expressive touch of the clavichord. This unique combination allowed for continuous variations in dynamics.

Bartolomeo Cristofori is credited with inventing the piano around 1700.

Grand Piano 1781 France - Louis Bas
Grand Piano 1781 France - Louis Bas

He was an expert harpsichord maker working for the Medici family in Italy. He called his invention "un cimbalo di cipresso di piano e forte." This name eventually became the words fortepiano and, finally, piano. Cristofori designed a hammer that struck the string but quickly rebounded. This rebound was vital so the hammer would not damp the vibration. His mechanism allowed for much greater dynamic nuance than previous instruments.

Technological shifts in the 19th century transformed the instrument's power.

Fluegel-Rahmen
Fluegel-Rahmen

The Industrial Revolution provided high-quality piano wire and precision casting. This allowed for the creation of massive cast iron frames. These frames could withstand the tremendous tension of much stronger strings. Innovations like aliquot stringing also gave grand pianos a richer tone and longer sustain. In 1821, Sébastien Érard invented the double escapement action.

Steinway Grand Piano Iron Plates and Strings
Steinway Grand Piano Iron Plates and Strings

This included a repetition lever that allowed rapid note repetition. This advancement was famously used by the pianist Franz Liszt.

Different musical schools shaped the piano's history through various styles. The Viennese school included makers like Johann Andreas Stein and Nannette Streicher. Their pianos used wood frames and leather-covered hammers, producing a softer tone. Wolfgang Amadeus Mozart composed many works for these specific instruments. Later, the English firm Broadwood built larger, more robust pianos. They were the first to expand the range beyond five octaves. By 1820, they reached a seven-octave range. These developments helped the piano become a staple in Western music education and performance.

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🖼️ Images & Media (24)
PianoRange.tif
File:CristoforiPiano1726LeipzigKeyboardView.jpg
CristoforiPiano1726LeipzigKeyboardView.jpg
File:Grand Piano 1781 France - Louis Bas.jpg
Grand Piano 1781 France - Louis Bas.jpg
File:DuplexScale.JPG
DuplexScale.JPG
File:Upright piano inside.jpg
Upright piano inside.jpg
File:Steinway & Sons concert grand piano, model D-274, manufactured at Steinway's factory in Hamburg, Germany.png
Steinway & Sons concert grand piano,...
File:Klavier nah offen.jpg
Klavier nah offen.jpg
Steinway piano - Duo-Art.ogv
File:Minipiano 'Pianette' model with matching stool.jpg
Minipiano 'Pianette' model with matching stool.jpg
File:Wurlitzer210.png
Wurlitzer210.png
File:DisklavierPlayer.jpg
DisklavierPlayer.jpg
File:Fortepian - schemat.svg
Fortepian - schemat.svg

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