An overture in theatre is a musical introduction that typically precedes a performance, setting the tone for the show. It often features themes or motifs from the upcoming production, allowing the audience to become familiar with the music they will hear throughout the play or musical. Overtures are commonly found in musicals and operas. The purpose of an overture is to engage the audience and create anticipation for the story about to unfold. It serves as a bridge between the audience's arrival and the beginning of the performance, enhancing the overall experience. Overtures can vary in length and complexity, depending on the production.