Operetta is a form of light opera that combines music, singing, and spoken dialogue. It typically features humorous plots and is characterized by its melodic tunes and lively performances. Popularized in the 19th century, operettas often include elements of satire and romance, making them accessible and entertaining for a wide audience. Notable composers of operetta include Jacques Offenbach and Gilbert and Sullivan, whose works remain popular today. Operettas are often performed in theaters and can be enjoyed by audiences of all ages, showcasing a delightful blend of music and storytelling that captivates the imagination.