What type of cadence occurs when V is followed by vi?

The occurrence of a V chord followed by a vi chord constitutes a deceptive cadence, which is a common and important aspect of harmonic progression in music. A deceptive cadence typically resolves from the dominant chord (V) to the submediant (vi) instead of completing the expected resolution to the tonic (I). This resolution creates a sense of surprise because it leads the listener to anticipate a stronger, more conclusive ending, usually represented by the tonic chord, but instead redirects to a less anticipated chord.

In this instance, the transition from the dominant to the submediant creates a unique sound that can add emotional depth or surprise within a musical phrase, making it a vital tool for composers and songwriters. Understanding this allows musicians to recognize and employ deceptive cadences effectively, enhancing their musical expression.