"Xintianyou", also known as "Shuntianyou" and "Xiaoquzi", is popular in the northern half of Shaanxi and some areas bordering Ningxia, Shanxi and Inner Mongolia. In the past, due to the inconvenient transportation, the production and trade here were carried by donkeys and mules, and the locals engaged in this kind of labor were called "porters", "porters" and "drivers". Walking in a lonely mountain and deep valley for a long time, "foot households" naturally amuse themselves by singing. They mainly sang "Tian You". They are both communicators and creators. In the process of singing, they will inevitably create at will, and after the creation, they will continue to spread. Of course, "Xintianyou" belongs to all people living on the Loess Plateau. Whether grazing farmland or having fun at festivals, they always hum a few words. As a kind of folk song with strong style and personality, the basic characteristics of Xintianyou are short and concise structure, open and unrestrained tunes, intense and deep feelings and strong expressive force. Its lyrics and songs are only two sentences. The first sentence of the lyrics rises, and the next paragraph shows the theme. For example, "Mali doesn't have a horse height, so if you choose a person from the crowd, you can count your brother as hello." Most of the tunes are based on a "double four-degree framework" of "the palace is still upright" The first sentence is divided into two paragraphs, and the first paragraph is extended for a long time, giving people a sense of vastness. The next sentence is done in one go. In the repeated singing of the first and second sentences, the singer is immersed in his own life sentiment. Representative repertoires include The Man's Tone, Lanhuahua, Sacrifice Spirit, Guerrilla from Hengshan Mountain, Easier said than done, and so on.