![]() Explicitly noted accidentals can be used to override this effect for the remainder of a bar. A special accidental, the natural symbol ♮, is used to indicate a pitch unmodified by the alterations in the key signature. If the key signature indicates G ♯, a local flat before a G makes it G ♭ (not G ♮), though often this type of rare accidental is expressed as a natural, followed by a flat ( ♮ ♭) to make this clear.Įffects of key signature and local accidentals do not accumulate. Likewise (and more commonly), a double sharp sign on a key signature with a single sharp ♯ indicates only a double sharp, not a triple sharp.Īssuming enharmonicity, many accidentals will create equivalences between pitches that are written differently. For instance, raising the note B to B ♯ is equal to the note C. ![]() ![]() Assuming all such equivalences, the complete chromatic scale adds five additional pitch classes to the original seven lettered notes for a total of 12 (the 13th note completing the octave), each separated by a half-step.
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