Before we discuss the names of the black keys, however, we must first learn about half steps and whole steps. In the last chapter, The Keyboard and the Grand Staff, we discussed the letter names of the white keys on the piano keyboard and noted that the black keys are grouped into alternating sets of two or three. Notes have enharmonic equivalence when they are spelled differently but sound the same.Be sure to write accidentals to the left of a note, directly across the line or space on which a note appears.A double sharp raises a note by a whole step, while a double flat lowers a note by a whole step.
A sharp raises a note by a half step, while a flat lowers a note by a half step. An accidental changes the pitch of a note.A whole step above is two keys to its right, while a whole step below is two keys to its left. A half step above a key on the piano is the key to its immediate right, while a half step below a key on the piano is the key to its immediate left.
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