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Example
An A natural, then A♭.
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In modern Western music notation, a natural (♮) is a musical symbol that cancels a previous sharp or flat on a note in the written music. The natural indicates that the note is at its unaltered pitch.[1]

♮
Natural (music)
In UnicodeU+266E
(HTML : &#9838)

The natural symbol can be used as an accidental to cancel sharps or flats on an individual note. It may also be shown in a key signature to indicate that sharps or flats in a previous key signature are cancelled.

{ \omit Score.TimeSignature \key c \major \time 2/1 ais'1 a'1 aes'! a'}
{ \omit Score.TimeSignature \key e \major s8^"" \bar "||" \key g \major s^"" \bar "||" \key aes \major s^"" \bar "||" \key f \major s^""}

A note is referred to as 'natural' when the letter-name note (A, B, C, D, E, F, or G) is not modified by a flat or sharp (either from a key signature or an accidental). These notes correspond to the white keys on the keyboard of a piano. A key signature with no sharps or flats generally indicates A minor or C major, using all natural notes with no sharps or flats.

The natural sign is derived from a square b used to denote B♮ in medieval music (in contrast with the round b denoting B♭, which became the flat symbol).

Usage

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Like all accidental markings, the natural symbol is written to the left of the note head and applies to subsequent notes of the same pitch through the remainder of the measure.

{ \omit Score.TimeSignature \relative c'' { b!1 }}

A note marked with a natural sign can be changed to a flat or sharp by simply applying the new accidental.

{ \omit Score.TimeSignature \key c \major \time 4/4 b'!2 bes' b'! bis'}

A natural sign (♮) cancels a flat or sharp from a previous note or key signature.

{ \omit Score.TimeSignature \key aes \major s8^"" \bar "||" \key f \major s^""}
{ \omit Score.TimeSignature \key e \major s8^"" \bar "||" \key g \major s^""}

Sometimes these cancelling naturals at a key change are omitted, but they must be used if the new key has no flats or sharps.

\relative c' { \omit Score.TimeSignature \set Staff.printKeyCancellation = ##f \key aes \major s8^"" \bar "||" \key f \major s^"" \bar "||" \key e \major s^"" \bar "||" \key c \major s^"" }

In the music notation program Lilypond, naturals are used at a key signature change to cancel a flat or sharp from the previous key signature, but are not shown when the flat or sharp changes to double flat or double sharp. The following shows key changes from A flat major to F flat major to G flat major in Lilypond.

{ \omit Score.TimeSignature \key aes \major s8^"" \bar "||" \key fes \major s^"" \bar "||" \key ges \major s^"" }

In the music notation editing program MuseScore, a software bug causes a new key signature to not display naturals when changing from a key that the user has created, even if the new key has no flats or sharps. The following example shows G-sharp major changing to C-major.[2]

{ \omit Score.TimeSignature \key gis \major _\markup { \halign #-.3 "G-sharp major ➡ C-major"} s^"" \bar "||"s^"" }

Double natural

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A double natural is a symbol that has two naturals (♮♮). It may be used to cancel a double flat or double sharp, but in modern notation a single natural sign (♮) is acceptable.[3] The same principle can be applied when canceling a triple sign (triple flat / triple sharp) or beyond.[4][5]

{ \omit Score.TimeSignature \relative c'' { beses2_"Older Practice" \tweak Accidental.restore-first ##t b bisis \tweak Accidental.restore-first ##t b beses_"Modern Practice" b bisis b } }

Similarly, a simple ♭ or ♯ without a natural sign can be used to indicate that a double flat or double sharp has been changed to a single flat or sharp, but older notation may use ♮♭, ♭♮, ♮♯, or ♯♮ instead. When changing a flat to a sharp or vice-versa, the combined symbols ♮♯ or ♮♭ can be used.[6]

{ \omit Score.TimeSignature \relative c'' { beses2_"Older Practice" bes bisis bis \accidentalStyle modern beses_"Modern Practice" bes bisis bis } }

Most notes showing a double-flat or double-sharp correspond in pitch with a natural note but, since they are notated differently, are considered enharmonic equivalents of the natural note. The same is true for F♭, C♭, E♯, and B♯.

In John Stump's Prelude and the Last Hope, double naturals are used to cancel double flats in a key signature.[7]

dn=\markup{ \natural \hspace #-.5 \natural } { \omit Score.TimeSignature \set Staff.keyAlterations = #`((6 . ,DOUBLE-FLAT)(2 . ,DOUBLE-FLAT)(5 . ,DOUBLE-FLAT)(1 . ,FLAT)(4 . ,FLAT)(0 . ,FLAT)(3 . ,FLAT)) s^"" \bar "||" \key cis \major \override Staff.KeyCancellation.stencil = #ly:text-interface::print \override Staff.KeyCancellation.text = \markup { \concat {\dn \raise #1.5 \dn \raise #-0.5 \dn \raise #1 \natural \raise #-1 \natural \raise #0.5 \natural \raise #-1.5 \natural}} s^""} \paper{tagline = ##f}

Unicode

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The Unicode character MUSIC NATURAL SIGN '♮' (U+266E) should display as a natural sign. Its HTML entity is ♮.

See also

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References

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  1. ^ Benward & Saker (2003). Music in Theory and Practice, Vol 1, p.6. McGraw-Hill, Seventh edition. "Natural (♮)—cancels any previous sharp or flat and returns to the natural, or unaltered, pitch."
  2. ^ "No cancelled key signature when changing custom key signature to C major / A minor". GitHub.
  3. ^ "OnMusic Dictionary - Term". www.music.vt.edu. Retrieved 20 July 2020.
  4. ^ Max Reger: Clarinet Sonata No.2 (Complete Score), pp. 33.: Scores at the International Music Score Library Project
  5. ^ Wen, Eric (2011). "E-quadruple flat: Tovey's Whimsy". Zeitschrift der Gesellschaft für Musiktheorie (in German). 8 (1): 77–89. doi:10.31751/612.
  6. ^ Chopin: Études No. 9, Op.10 (C.F. Peters), pp. 429.: Scores at the International Music Score Library Project
  7. ^ "Prelude and the Last Hope in C and C Minor". 3 March 2012.
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