Editing Sharp (music) (section)

== Key signature ==
{{Image frame|content=<score>{ \omit Score.TimeSignature { \key cis \major s16^"" } }</score>|width=200|caption=The standard order in which sharps occur in a key signature is "F♯ C♯ G♯ D♯ A♯ E♯ B♯", with a maximum of 7.}}In a [[key signature]], sharps or flats are placed to the right of the clef. The pitches indicated apply in every measure and octave.<!--Please do not change the sharp signs to number (#) signs.-->

{| class="wikitable"
!Number
of sharps
!Major key
!Sharp notes
!Minor key
|-
|0
|[[C major]]
|–
|[[A minor]]
|-
|1
|[[G major]]
|[[F♯ (musical note)|F♯]]
|[[E minor]]
|-
|2
|[[D major]]
|F♯, [[C♯ (musical note)|C♯]]
|[[B minor]]
|-
|3
|[[A major]]
|F♯, C♯, [[G♯ (musical note)|G♯]]
|[[F-sharp minor|F{{music|#}} minor]]
|-
|4
|[[E major]]
|F♯, C♯, G♯, [[D♯ (musical note)|D♯]]
|[[C-sharp minor|C{{music|#}} minor]]
|-
|5
|[[B major]]
|F♯, C♯, G♯, D♯, [[A♯ (musical note)|A♯]]
|[[G-sharp minor|G{{music|#}} minor]]
|-
|6
|[[F-sharp major|F♯ major]]
|F♯, C♯, G♯, D♯, A♯, [[E♯]]
|[[D-sharp minor|D{{music|#}} minor]]
|-
|7
|[[C-sharp major|C♯ major]]
|F♯, C♯, G♯, D♯, A♯, E♯, [[B♯ (musical note)|B♯]]
|[[A-sharp minor|A{{music|#}} minor]]
|}

The order of sharps in key signatures is '''F♯''', '''C♯''', '''G♯''', '''D♯''', '''A♯''', '''E♯''', '''B♯'''. Starting with no sharps or flats (C major), adding the first sharp (F{{music|#}}) indicates G major, adding the next (C{{music|#}}) indicates D major, and so on through the [[circle of fifths]].

Some keys may be written as an [[enharmonically equivalent]] key. In the standard tuning system of [[12-tone equal temperament]], the key of C{{music|#}} major, with seven sharps, may be written as D{{music|b}} major, with five flats. In rare cases the sharp keys may be extended further, into key signatures requiring a double sharp (for example, [[G♯ major]], which requires an F double-sharp).