chromatic scale

12.28  chromatic scale. A series of tones, the core of which is comprised of the 12 semitones within the octave, denoted by the note names C, C#/Db, D, D#/Eb, E, F, F#/Gb, G, G#/Ab, A, A#/Bb and B. The scale repeats in successive octaves.

Annotation              See Table 3.