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This is a list of the fundamental frequencies in hertz (cycles per second) of the keys of a modern 88-key standard or 108-key extended piano in twelve-tone equal temperament, with the 49th key, the fifth A (called A 4), tuned to 440 Hz (referred to as A440). [1] [2] Every octave is made of twelve steps called semitones.
English: This is a 88 key piano layout with octaves illustrated and hovering that reveals the frequency for the key. (The numbered octaves are black on transparency. They will not show up if the image is displayed on a black background, such as if the background of your browser is set to black, or is black when you open images separately.)
An 88-key piano keyboard, with the octaves numbered and middle C (cyan) and A440 (yellow) highlighted. The table below gives notation for pitches based on standard piano key frequencies: standard concert pitch and twelve-tone equal temperament.
A man tuning an upright piano. Piano tuning is the process of adjusting the tension of the strings of an acoustic piano so that the musical intervals between strings are in tune. The meaning of the term 'in tune', in the context of piano tuning, is not simply a particular fixed set of pitches. Fine piano tuning requires an assessment of the ...
The purpose of this adjustment is to move the 12 notes within a smaller range of frequency, namely within the interval between the base note D and the D above it (a note with twice its frequency). This interval is typically called the basic octave (on a piano keyboard, an octave has only 12 keys). This dates to antiquity: in Ancient Mesopotamia ...
The lowest pitch (frequency: 27.5 Hz) of an 88-key piano is equivalent to a sub contrabass in the range name. Some modern pianos have even more notes (a Bösendorfer 290 "Imperial" has 97 keys, and a Stuart & Sons model has 108 keys [ 1 ] ).
An 88-key piano, with the octaves numbered and middle C (cyan) and A 4 (yellow) highlighted. A440 is widely used as concert pitch in the United Kingdom [8] and the United States. [9] In continental Europe the frequency of A 4 commonly varies between 440 Hz and 444 Hz. [8]
Download as PDF; Printable version; In other projects Wikimedia Commons; Wikibooks; ... Piano key frequencies; Piano Lessons (book) Piano maintenance; Piano Mill ...
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