Harmony refers to the neutrality, simplicity and moderation of artistic expression in folk music. Therefore, what we often hear in appreciating works is a moderate sense of boundaries, unity and harmony; Rather than the sharp contrast in music materials and the ups and downs in artistic expression. These are also the reflections of three basic propositions in China's ancient philosophy-"the unity of heaven and man, the unity of knowledge and action, and the unity of scene" in music.
2. The artistic conception of "emptiness"
This is the requirement of national music in aesthetic characteristics. Implicit beauty and ethereal beauty are a realm that folk music must reach. No matter in the creation and performance of folk music, or in the listening and appreciation of folk music works, there is rhyme. China people's pursuit of charm is better than the pursuit of sound itself, just like China's freehand brushwork, which does not ask for details, but only seeks the shape but the spirit.
3. The form of "line"
European art pays attention to three-dimensional sense, and its music is no exception. China art, as the aesthetic theorist Zong Baihua said, has formed a unique "line art" regardless of painting, calligraphy and music.