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In standard music notation, the order in which sharps or flats appear in key signatures is uniform, following the circle of fifths: F ♯, C ♯, G ♯, D ♯, A ♯, E ♯, B ♯, and B ♭, E ♭, A ♭, D ♭, G ♭, C ♭, F ♭. Musicians can identify the key by the number of sharps or flats shown, since they always appear in the same order.
The order of sharps in key signature notation is F ♯, C ♯, G ♯, D ♯, A ♯, E ♯, B ♯. Starting with no sharps or flats (C major), adding the first sharp (F ♯ ) indicates G major, adding the next (C ♯ ) indicates D major, and so on through the circle of fifths .
Double flats or sharps lower or raise or the pitch of a note by two semitones. [3] An F double sharp is a whole step above an F, making it enharmonically equivalent to a G. These alterations apply to the note as if it were a "natural", regardless of the key signature (see the F in measure 2 of the Chopin example below).
Key signatures indicate which notes are to be played as sharps or flats in the music that follows, showing up to seven sharps or flats. Notes that are shown as sharp or flat in a key signature will be played that way in every octave—e.g., a key signature with a B ♭ indicates that every B is played as a B ♭. A key signature indicates the ...
When a musical key or key signature is referred to in a language other than English, that language may use the usual notation used in English (namely the letters A to G, along with translations of the words sharp, flat, major and minor in that language): languages which use the English system include Irish, Welsh, Hindi, Japanese (based on katakana in iroha order), Korean (based on hangul in ...
In music, flat means lower in pitch. It may either be used generically, meaning any lowering of pitch, or refer to a particular size: lowering pitch by a chromatic semitone. A flat is the opposite of a sharp (♯) which raises pitch by the same amount that a flat lowers it. ♭
Following the clef, the key signature is a group of 0 to 7 sharp or flat signs placed on the staff to indicate the key of the piece or song by specifying that certain notes are sharp or flat throughout the piece, unless otherwise indicated with accidentals added before certain notes.
The default behaviour of LilyPond (pictured above) writes single sharps or flats in the circle-of-fifths order, before proceeding to double sharps or flats. This is the format used in John Foulds ' A World Requiem , Op. 60, [ 31 ] which ends with the key signature of G ♯ major, as displayed above.