Direct modulation is a sudden shift from one key to another without intermediate chords, adding a dramatic touch to the musical narrative.
It uses shared tones between two keys to smooth transitions, improve cohesion, and connect old and new tonal centers.
It involves multiple key changes in succession, creating a sequence of harmonic transformations, adding complexity and progression to the listener's experience.
Diatonic modulation transitions between keys use the same diatonic scale, maintaining a smooth progression in traditional and classical music.
It is a technique that introduces chromatic notes into the traditional diatonic structure, enabling greater emotional expression.
It involves shifting keys with the same tonic but different modes, causing mood changes while maintaining familiarity through the common tonic.