Song Xianghe is a kind of music formed by inheriting the tradition of Chu Sheng in the pre-Qin period on the basis of "street songs" in the Han Dynasty in China. Mainly in bureaucrats, rich banquets, entertainment and other occasions, as well as court New Year's Day banquets, worship of gods and even folk customs and other occasions to play. The name "Song Xianghe" was first recorded in the Book of Jin? Rejoice: "Harmony, an old China song. Silk and bamboo are more harmonious, and festival performers sing. "Its characteristic is that the singer's self-drumming corresponds to the accompaniment of orchestral instruments, hence the name. There are mainly three kinds of palace tones used in Xianghe songs, namely "color", "emotion" and "flat" tones, also known as "fragrance" and "three". It is the same as the so-called "three tones of Qing merchants" in later generations, and is referred to as "three tones" for short.

Almost all the early harmonies came from the "apprentice songs" and "Dan songs" in the Street Talk. Tuge is a kind of oratorio without musical instrument accompaniment, or "ballad", which is a rather ancient singing form. But the song is "One Man Sing Three People Make Peace" or "Trust". Their musical forms are generally simple in structure and consist of a "song". Songs can be divided into two categories: chanting songs and various tunes. Generally speaking, songs keep the true colors of folk songs, and "words" are the lyrics. "Sheng" is a function word sung by stress, such as "Yang, Wu, Yi, Yi, Na, A" (Ancient and Modern Music Record). Some even add "chaos" after "qu" just like "Chusheng". In the pre-Qin period, some famous apprentices appeared, such as Qin Qing and Han E, whose songs shocked trees and touched people's hearts, reaching a high level. In the early years of the Western Han Dynasty, the most famous master of apprentice songs was Lu people. Liu Xiang said that he expressed his grief and touched Chen Liang. In the Han dynasty, disciple songs were particularly popular among the people. Some nursery rhymes and ballads preserved in the Records of the Five Elements of the Later Han Dynasty were sung in the form of apprentice songs, and some were later equipped with stringed instruments.

In the process of development, Song Xianghe gradually combined with dance and instrumental music, resulting in "Daqu" or "Xianghe Daqu". Later, it broke away from singing and dancing and became a pure instrumental ensemble called "Qu Dan". Daqu or Qu Dan is an advanced form of harmony songs. Its typical music structure consists of three parts: performance-music-chaos or potential. "Yan" is a prelude or introduction, mostly instrumental music, and some can sing. The tone may be euphemistic and lyrical, so it is called "Yan". "Trend" or "chaos" is the end of a piece of music, which can be an aria, such as "How to get a good song"; It can also be an instrumental part, such as "Shang Mo Sang". Most of the "chaotic" music is intense and enthusiastic, and there may be no dance to match it. "Trend" may refer to dancing. "Qu" is the main body of the whole music. Generally, it consists of many arias, and each aria has the characteristics of euphemistic lyricism. It is in sharp contrast with the "Xie" behind ("Tai Lan" quoted "Le"). Usually an aria is called "solution". Daqu has at least two solutions and at most seven or eight solutions. Shang Mo Sang, Ge Yan He Heng and Guangling San are all typical works, among which Guangling San, a piano piece, still exists today.