A sharp and a scale is it low the note by 1/2 step raises a note by one whole step, raises a note by one half step or lowers the note by one whole step
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A sharp (#) raises a note by one half step, whereas a flat (♭) lowers the note by one half step. A scale is a series of notes ordered by pitch, and the use of sharps or flats determines the key signature of the scale.