The melody characteristics of Western classical music is a relatively broad topic, and different people may have different understandings. However, in general, the melodies of Western classical music usually have the following characteristics:

1. Simple and clear: The melodies of Western classical music are usually relatively simple and clear, not as complex and changeable as some ethnic music.

2. Harmonious and beautiful: The melody of Western classical music is usually very harmonious and beautiful, giving people a comfortable and pleasant feeling.

3. Symmetrical balance: The melodies of Western classical music are usually relatively symmetrical and balanced, with the pitches on the left and right sides being relatively symmetrical, giving people a sense of stability.

4. Variety: Although the melodies of Western classical music are usually relatively simple and clear, there are also many variations in different works.