The overall style characteristics of music during this period are mainly reflected in the following seven aspects: 1. Music entered the palace from the church, and gradually moved toward society and the people. 2. Music creation is no longer dominated by the polyphonic techniques of the Baroque period, but adopts the main-key music form, which strengthens the correspondence between melody and harmony and establishes the functional harmony of "master-subordinate-subordinate-master" conduct. 3. Establish the principle of segmented structure of the music form. The melody no longer adopts the continuous and expanding sound patterns of the Baroque period, but is formed with short and symmetrical 2 and 4 bars (also 3, 5 and 6 bars) as the basic unit. Square phrase structure. The music presents beautiful, simple and balanced characteristics. 4. Motivational development of themes, replacing the modular development of a single theme in the Baroque period with contrast between themes. 5. "Continuo bass" is replaced by clear instrument notation, allowing the composer to experience the timbre of the instrument more clearly. 6. The pursuit of objective beauty depicts people in nature breaking away from their attachment to God in the church and the monarch in the court, which broadens the range and expressive power of music. 7. The focus of music has shifted to new instrumental music genres—symphonies, concertos, sonatas, and quartets. These changes have had a profound impact on the development of European music. The types of music during the classical period were mainly secular, professional, and directional.