Note pitches can be modified by using accidentals:
|sharp||Raises the note 1 half step|
|flat||Lowers the note 1 half step|
|double sharp||Raises the note 2 half steps or 1 whole step|
|double flat||Lowers the note 2 half steps or 1 whole step|
|natural||Cancels any previous accidental|
In music writing an accidental affects every note of the same name and in the same octave within a measure. In the following example the last G note is sharp (we would need to add a natural sign if we wanted it natural):
Go to Whole and Half Steps for more information on accidentals and their relationship to the piano.
See Reading Music in the Tutorials section.