The term 'Parts of Musicals' can refer to the different sections that make up a musical. These sections are typically referred to as 'acts, ' which is a four-letter word. An act is a major division of a play or opera, usually consisting of several scenes and having its own climax. Acts are usually separated by intermissions, and they often contain multiple songs and dances. Each act typically has its own plot and characters, and they are often used to move the story forward.