Question

What is chromaticism?

Answer 1

(1) The use of chromatic intervals and chromatic chords.
(2) A style of composing using chromatic harmony. Gesualdo in 16th cent. used advanced chromaticism. Bach's experiments in chromaticism were based on diatonic principles. The age of Romanticism explored chromaticism further because of need for emotional expression, hence the chromatic elements in Wagner's Tristan und Isolde and later works.

Answer 2

cromatic scale is the use of every single note. on the piano there is a semitone difference between each note. on the piano an example of a cromatic scale would be C C# D D# E F F# G G# A A# B C. E and F and B and C have a gap of a tone between them
Hope this helps