<u>A musical uses performance to make narration with a combination of dialogue, music, dance, etc while an opera uses only music.</u>
According to the given question, we are asked to show the difference between a musical and an opera and we need to show how they both express the story to the audience.
As a result of this, a musical is a performance by a <em>group of people</em> to tell a story, using music, dance and dialogue to narrate, while an opera is the use of music only by performers on stage to entertain the audience.
