A Hani girl is playing "Lulu". "Achi" is also called "Aci" and "Aqi". It means "playing song". They are mainly about love, and some involve labor and other social life contents. The traditional lyrics are extremely rich, and can also be improvised and sung based on the scene. Singing forms include male and female duets and solos, as well as male and female lead singers accompanied by folk bands and others supporting the chorus. The latter often form free polyphony. Those sung loudly on the mountain are called "Chima" and "Aqigu", while those sung in a medium voice are called "Bai" and "Aqiqiao", which are similar to folk songs. The tune is high-pitched and loud, and the end of the sentence is often drawled, and the upper and lower sentences flow together to form a contrast. For example, Honghe's "Nimei Chima": When meeting a lover in the house, singing in a low voice is called "Chiran, Duoxia", as if whispering, so it is also called "Duojia" (talking). Singing loudly and quietly Most of the Achi tunes are sung loudly and quietly. Most of the Achi songs have fixed quotations, and sometimes the high notes of the whole song appear in the quotations, and most of them only have no specific meaning. Some start with words such as "beautiful girl" and "handsome young man" (a song sung on the lawn) by the Aini people in the west of Lancang River. It is a song sung by young men and women when they gather at night and choose a couple. Love songs, soulful and beautiful, include "Pu Quexiang", "Duli Luo Hei", "Gasa Zhi" and other tracks.