Piano key frequencies

Piano key frequencies

This is a virtual piano with 88 keys tuned to A440, showing the frequencies, in cycles per second (Hz), of each note (ie 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 example, A4 is normally tuned to 440 Hz. To get the next semitone (Amusic|#4), multiply 440 Hz by the twelfth root of two. To go from A4 to B4 (up two semitones), multiply 440 by the twelfth root of two squared. For other tuning schemes refer to Musical tuning.

This list of frequencies is for a theoretical ideal piano. On an actual piano the ratio between semitones is slightly larger, especially at the high and low ends, 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.

Virtual piano

ee also

*Piano tuning

External links

* [http://web.archive.org/web/20070305040009/http://wiki.highinbcgallery.com/index.php/Almost_a_shape/technology/Piano_frequencies/Piano_frequency_table.pl Piano frequency table.pl] - A small GFDL perl script containing the information from the table on this page in a perl data structure.
* [http://shakahara.com/pianopitch2.php interactive piano frequency table] — A php script allowing the reference pitch of A49 to be altered from 440 Hz.

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Piano tuning — is the act of making minute adjustments to the tensions of the strings of a piano to properly align the intervals between their tones so that the instrument is in tune. The meaning of the term in tune in the context of piano tuning is not simply… …   Wikipedia

  • Piano — Pianoforte redirects here. For earlier versions of the instrument, see Fortepiano. For other uses of Piano, see Piano (disambiguation). Piano Bösendorfer grand piano Keyboard instrument …   Wikipedia

  • Key (instrument) — A key is a specific part of a musical instrument. The purpose and function of the part in question depends on the instrument.On instruments equipped with tuning machines, violins and guitars, for example, a key is part of a tuning machine. It is… …   Wikipedia

  • List of piano brand names — This article is a list of piano brand names from all over the world. This list also includes names of old instruments which are no longer in production.Many of these piano brand names are stencil pianos , which means that the company which owns… …   Wikipedia

  • Musical keyboard — This article is about keyboards on musical instruments. For instruments referred to as keyboards , see Keyboard instrument. Layout of a musical keyboard (three octaves shown) …   Wikipedia

  • Note — This article is about the musical term. For other uses, see Note (disambiguation). In music, the term note has two primary meanings: A sign used in musical notation to represent the relative duration and pitch of a sound; A pitched sound itself.… …   Wikipedia

  • Pitch (music) — In musical notation, the different vertical positions of notes indicate different pitches. Pitch is an auditory perceptual property that allows the ordering of sounds on a frequency related scale.[1] Pitches are compared as higher and lower in… …   Wikipedia

  • Equal temperament — is a musical temperament, or a system of tuning in which every pair of adjacent notes has an identical frequency ratio. In equal temperament tunings an interval mdash; usually the octave mdash; is divided into a series of equal steps (equal… …   Wikipedia

  • C (musical note) — Low C redirects here. For the song by Supergrass, see Supergrass. Middle C  Play ( …   Wikipedia

  • Octave scale — An octave scale is named for the musical note that begins and ends a musical scale. However, though the notes are the same they remain an octave apart, or in other words, the end note is double the frequency of the beginning note. Notes at the… …   Wikipedia