Among the classical music schools in Europe in the 18th century, there are three musicians who have made outstanding contributions to the symphony. They are representatives of classicism, and they are called the Vienna Three Masters. They are Haydn, Beethoven and Mozart. Haydn is one of the representatives of classical music school.

Classical music school refers to those styles that can be heard from the music of Haydn, Mozart and Beethoven, the greatest and most famous composers in the 18th century. It often refers to the music trends and creative styles produced in Europe in the 18th and 19th centuries.

Classical music school pays attention to strict structure, perfect form, harmonious sound and strict logic. Most of the music is serious and steady, advocating rationality, while the expression of feelings is implicit and intrinsic. The instrumental music is mostly absolute music. The main composers are Handel, Bach, Haydn, Mozart, Beethoven and others.

Classical music, on the other hand, advocates stability, discipline and logical balance. Although it seems too conventional, it lacks aesthetic feeling. Appreciating the works of this period, the audience enjoys a harmonious, elegant but balanced and unified beauty.

In rhythm, classical music changed the strong sense of Baroque in the past, and paid special attention to the role of melody, which was also the "most exquisite and dynamic part" of music works in the classical period and became its soul.

In terms of melody, the music of this period particularly emphasized balance and conciseness. In terms of structure, the classical period is very different from the baroque period, and its core lies in the single melody tonic music structure adopted by the classical school.