First of all, British musicals have diversified musical themes and styles. For example, in the stage design, the pursuit of realistic stage scenery and props, as well as the close combination of singing and dancing, all make the audience feel as if they are in the scene. On the contrary, the stage scenery and props of French musicals are usually simpler and pay more attention to the presentation of the story.

Secondly, music and dance in British musicals are often closely related to the plot. In many works, dance is an important means to express the plot, and the design of dance movements is often closely coordinated with music and lyrics. In French musicals, although dance is also an important part, it is often independent of the development of the plot.

Finally, the musical styles of British musicals are changeable, including pop, rock, jazz and classical. However, the music style of French musicals is more inclined to rock and roll.

It should be noted that the above characteristics are not absolute, and each specific musical work may have its own unique musical style and expression.