What does "chromatic harmony" refer to in music composition?

Chromatic harmony refers to the use of notes that are outside the standard major and minor scales, leading to the incorporation of chromatic notes—those that are a half step away from the diatonic scale tones. This allows for a richer and more complex harmonic structure, as it introduces greater tension and resolution in the music. The juxtaposition of major and minor chords takes advantage of this chromaticism, creating a more varied emotional palette and a nuanced sound.

The focus on chromatic harmony signifies a departure from traditional harmony, embracing more complex relationships between chords that include alterations to the expected major and minor structures. By blending these contrasting harmonies, composers can evoke diverse feelings and enhance the expressive potential of their music, showcasing the depth of chromatic harmony's role in composition.