chromaticism

chromaticism [kroh-mat-uh-siz-uh m, kruh-] ExamplesWord Origin noun Music.

1. the use of chromatic tones.
2. a style in which chromatic tones predominate.

Origin of chromaticism First recorded in 1875–80; chromatic + -ism Examples from the Web for chromaticism Historical Examples of chromaticism

One should notice the predilection of Steffani (like the great Italians of his time) for chromaticism and his contrapuntal taste.

Handel

Romain Rolland