We can make music sound beautiful when we compose it by adding variety and opposition of dynamics, tempo, rhythm, and voice (instrumentation or harmonies). We also make it beautiful by the way we perform a song (technique).
Why do you think that beautiful music needs variety and opposition to make it sound good? Why is it important to play it with a good sound?
There is so much beautiful music in every country in the world! What is some beautiful music that you have heard? What beautiful song do you have in your heart that you can put down on paper to share with others?