
The chromatic scale is a musical scale with twelve pitches, each a semitone above or below another. On a modern piano or other equal-tempered instrument, all the semitones are the same size (100 cents). In other words, the notes of an equal-tempered chromatic scale are equally spaced. An equal-tempered chromatic scale is a nondiatonic scale having...
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http://en.wikipedia.org/wiki/Chromatic_scale

a sequence of all twelve notes in an octave, played in a row (either ascending or descending). Fragments of the chromatic scale are used in many styles of popular music, but more extensive use of chromatic scale tends to occur in jazz, fusion, and the more experimental genres of rock.
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http://en.wikipedia.org/wiki/Glossary_of_jazz_and_popular_music

(from the article `musical sound`) ...theories of earlier times when only eight (Latin octo) notes within this breadth were codified. Today the octave is considered in Western music to ... Ballad tunes are based on the modes rather than on the diatonic and chromatic scales that are used in modern music. Where chromaticism is detected in...
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http://www.britannica.com/eb/a-z/c/80

In music, a chromatic scale is a scale consisting of thirteen tones, including the eight scale tones and the five intermediate tones.
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http://www.probertencyclopaedia.com/browse/VC.HTM

A musical scale where the consecutive notes are separated by a semi-tone interval.
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http://www.songstuff.com/glossary/C

A scale where notes are incremented in semitones.
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http://www.traditionalmusic.co.uk/music%20tech%20glossary/Music%20Tech%20Gl

a sequence of all twelve notes in an octave, played in a row (either ascending or descending). Fragments of the chromatic scale are used in many styles of popular music, but more extensive use of chromatic scale tends to occur in jazz, fusion, and the more experimental genres of rock.
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http://www.translationdirectory.com/glossaries/glossary308.php

[
n] - a 12-note scale including all the semitones of the octave
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http://www.webdictionary.co.uk/definition.php?query=chromatic%20scale

a scale consisting of successive half-steps.
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https://education.ket.org/resources/music-glossary/
noun a 12-note scale including all the semitones of the octave
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https://www.encyclo.co.uk/local/20974

Musical scale consisting entirely of semitones. All the notes on a keyboard, black and white, are used for this scale. Dividing the octave into 12 equal steps of one semitone each makes this a neutral scale without a definite key
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https://www.encyclo.co.uk/local/21221

Includes all twelve notes of an octave.
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https://www.encyclo.co.uk/local/21781

twelve consecutive tones within an octave, one half step apart.
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https://www.encyclo.co.uk/local/22288

a scale progressing entirely by semitones.
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https://www.infoplease.com/dictionary/chromatic-scale
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