Fundamentals of
SCALES AND KEY SIGNATURES

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4. Key Signatures.

a. A key signature is the grouping of chromatic signs that have been extracted from a scale and placed after the clef sign. The number of flats or sharps in a key signature determines the key of a composition.

b. The E Major scale has a key signature of three flats (Figure 2-6).


Figure 2-6: Extracting Accidentals for Key Signatures.

c. The E Major scale with the key signature in place, looks like this (Figure 2-7).


Figure 2-7: E Major Key Signature.


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Last Updated: March 31, 2012