Both Qing Yin and Yin Qing mentioned expressing poetry or literary works by chanting. Yin Qing emphasized the clarity, brightness and purity of sound, and paid attention to the accuracy of tone and the fluency of rhythm. Usually used to express solemn and profound feelings or content. Light chanting pays more attention to the lightness, softness and cadence of the voice, and is often used to express light and cheerful emotions or content. Light chanting pays more attention to musicality and rhythm, and is often used to express euphemistic and lively artistic conception. The connection between the two is that they are both in the form of chanting, and both express poetry or literary works through sound. Everyone pursues the beauty of phonology and the expressive force of sound, and conveys emotion and artistic conception through chanting. Although there are differences in expression and atmosphere, Qing Yin and Yin Qing are both important expressions in traditional literature and art, which reflect the close relationship between voice and literature.