Chromatism always -
         (a) operates in the direction of the Voice-leading of a given Orbit:
                   if a note resolves downward, it will be flattened;
                   if a note resolves upward, it will be sharpened;
         (b) requires the necessary "space":
                   if a note resolves a whole tone, chromaticism is possible;
                   if a note resolves only a semi-tone, chromaticism is not possible;
         (c) makes a chord more complex;
         (d) makes a chord more powerful;
         (e) produces an irreversible result:
                   once a note (or chord) is chromaticized, it stays chromaticized.
A chromaticized note always bears the same note name as the original diatonic note.
All of these properties of chromaticism will become clearer as we see examples.