Musical structure refers to the organization of a piece of music, outlining how different sections are arranged and related to each other. Common structures include verse-chorus form, where verses tell a story and the chorus emphasizes the main theme, and sonata form, which typically consists of an exposition, development, and recapitulation. Understanding musical structure helps listeners appreciate how composers create contrast and unity within their works. It also aids musicians in learning and performing pieces, as recognizing patterns can simplify the process of memorization and interpretation.