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semitone

File:Cadence_minor_second.png · Wikimedia Commons · See Wikimedia Commons

EntityQ738785· pop 39· linked from 779 articles

In Western music theory, a semitone (also called a half step or half tone) is one of two parts into which a whole tone is divided. Semitones appear as the smallest steps in chromatic scales (which divide the octave into twelve semitones), arising on keyboards between the pitches of two adjacent keys. For example, C is adjacent to D; the interval between them is a semitone. Semitones are among the most dissonant intervals when sounded harmonically.

Key facts

Musical interval.main_interval_name
Minor second
Musical interval.inverse
Major seventh
Musical interval.abbreviation
m2
Musical interval.semitones
1
Musical interval.interval_class
1
Musical interval.just_interval
256:243, 16:15, 27:25
Musical interval.cents_equal_temperament
100.0
Musical interval.cents_just_intonation
90.2, 111.7, 133.2
Interval.main_interval_name
Augmented unison
Interval.inverse
Diminished octave
Interval.other_names
Chromatic semitone, minor semitone
Interval.abbreviation
A1
Interval.semitones
1
Interval.interval_class
1
Interval.just_interval
2187:2048, 25:24
Interval.cents_equal_temperament
100
Interval.cents_just_intonation
114, 71

via Wikipedia infobox

~25 min read

Article

16 sections
Contents
  • Minor second
  • Augmented unison
  • Diminished unison
  • History
  • Semitones in different tunings
  • Pythagorean tuning
  • Meantone temperament
  • Equal temperament
  • Well temperament
  • 5-limit just intonation {{anchor|Just intonation}}
  • Extended just intonation
  • Other equal temperaments
  • See also
  • Notes
  • References
  • Further reading

{{Image frame |content = { \omit Score.TimeSignature \relative c' { \time 4/4 \set Score.tempoHideNote = ##t \tempo 4 = 90 1 | c4 des c2 } }

|width=|caption= A diatonic semitone, or minor second }}

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