How would you most accurately describe a Chromatic Scale?

A)A colorful array of sound
B)12 half steps, between 13 pitches
C)8 Pitches in an Octave

The chromatic scale or twelve-tone scale is a musical scale with twelve pitches, each a semitone above or below its adjacent pitches. As a result, in 12-tone equal temperament (the most common temperament in Western music), the chromatic scale covers all 12 of the available pitches.

Explanation:

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