Irregular Resolution

Cadential 6/4 Chord: A cadential 6/4 chord is often used as an irregular resolution. It involves placing the tonic (I) chord in second inversion before resolving it to the dominant (V) chord.

Deceptive Cadence: A deceptive cadence occurs when a V chord unexpectedly resolves to a different chord instead of the expected I chord, creating surprise and tension.

Secondary Dominant: A secondary dominant is a chromatically altered dominant chord that temporarily replaces another diatonic chord, adding color and tension before resolving to its target harmony.