Western opera is a theatrical art form that combines singing, orchestral music, acting, and sometimes dance to tell a story. Originating in Italy in the late 16th century, it has evolved into various styles and traditions, including Italian opera, German opera, and French opera. Performances typically feature a structured format, including arias, recitatives, and choruses. Famous composers like Wolfgang Amadeus Mozart, Giuseppe Verdi, and Richard Wagner have significantly influenced the genre, creating works that are still performed today in opera houses around the world.