This is a virtual piano with 88 keys tuned to A440, showing the frequencies, in cycles per second (Hz), of each note (i.e. Note frequencies of each note found on a standard piano). This distribution of frequencies is known as equal temperament, i.e. each successive pitch is derived by multiplying the previous by the twelfth root of two. For other tuning schemes refer to Musical tuning. A440 is the 440 Hz tone that serves as the standard for musical pitch. ... The hertz (symbol: Hz) is the SI unit of frequency. ... FreQuency is a music video game developed by Harmonix and published by SCEI. It was released in November 2001. ... An equal temperament is a musical temperament -- that is, a system of tuning intended to approximate some form of just intonation -- in which an interval, usually the octave, is divided into a series of equal steps (equal frequency ratios). ... The Twelfth root of two is a quantity representing the frequency ratio between any two consecutive notes of a modern chromatic scale in equal temperament. ... In music, there are two common meanings for tuning: Tuning practice The act of tuning an instrument or voice. ...
This list of frequencies is for a theoretical ideal piano. On an actual piano the ratio between semitones becomes slightly larger due to string thickness which causes inharmonicity due to the nonzero force required to bend steel piano wire even in the absence of tension. This effect is sometimes known as stretched octaves, and the pattern of deviation is called the Railsback curve. In music, inharmonicity is the degree to which the frequencies of the overtones of a fundamental differ from whole number multiples of the fundamentals frequency. ... Piano wire is a specialized type of wire made for use in piano and other musical instrument strings, as well as many other purposes. ... A pseudo-octave is an interval whose frequency ratio is not 2:1, the definition of an octave, but is treated in some way or ways equivalent to this ratio. ... It has been suggested that this article or section be merged into Piano acoustics. ...
A440 is the 440 Hz tone that serves as the standard for musical pitch. ... In Western music, the expression middle C refers to the note C or Do located exactly between the two staves of the grand staff, quoted as C4 in note-octave notation (also known as scientific pitch notation). ...
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External links
Piano frequency table.pl - A small GFDL perl script containing the information from the table on this page in a perl data structure.
AudioTestFileGen - a simple, free utility that outputs Window's PCM audio files (*.wav) that will sound the selected musical note in your audio player. This audio file then becomes a precise standard reference for a note of the modern Equal Tempered Scale to which you can tune a musical instrument.
Tuned Piano - a web piano tuned to equal temperament.
The word piano is a shortened form of the word pianoforte, which is seldom used except in formal language and derived from the original Italian name for the instrument, gravicèmbalo col piano e forte (literally harpsichord with soft and loud).
The Broadwood firm, which sent pianos to both Haydn and Beethoven, was the first to build pianos with a range of more than five octaves: five octaves and a fifth during the 1790s, six octaves by 1810 (in time for Beethoven to use the extra notes in his later works), and seven octaves by 1820.
The rare transposing piano, of which Irving Berlin possessed an example, uses the middle pedal as a clutch which disengages the keyboard from the mechanism, enabling the keyboard to be moved to left or right with a lever.
These are: the case of the wing-shaped grand piano (or the cabinet of the vertical or upright piano); the soundboard and the ribs and bridges that are its components; the cast iron plate; the strings; and, collectively, the keys, hammers, and piano action or mechanism.
The 220 to 240 strings of the piano are attached to hitch pins along the curved edge of the cast iron plate and to tuning pins across the front of the piano, roughly parallel to the keyboard.
Keys and strings were paired in a striking instrument in the clavichord, which led directly to the invention of the pianoforte or fortepiano.
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