What is a musical cadence and how does it contribute to the overall structure and harmony of a piece of music?

A musical cadence is a sequence of chords that marks the end of a phrase or section in music. It provides a sense of resolution and closure to the listener. Cadences help establish the overall structure of a piece by dividing it into smaller sections and creating a sense of balance and direction. They also contribute to the harmony of a piece by creating tension and release, adding emotional depth and interest to the music.