The Chorus is an art form that is the most close and focus on the "harmonious". In Western style of classical chorus, the "harmonious" as a specific representation form, is the unity of subject and object in aesthetic. Undoubtedly, the "harmonious" is an aesthetic experience based on the "beauty" and "pleasure", with emotional on one hand, but for music, "harmonious" is more rational, on the other hand. The "harmony" in classical chorus embodied the development from "discovery of harmony and change in the nature" to "harmony be...