In practical application, portamento is varied, and it is often mastered flexibly according to the emotional needs and stylistic characteristics of the music. The use of portamento can also reflect the characteristics of music in various places. For example, the portamento used in music genres such as Henan pendant, Guangdong music, Yunnan lantern, and Jiangnan Sizhu is one of the distinctive features of this music genre. Guizhou Miao folk songs and Hunan Miao folk songs are also very different in style of glissando.

Here are a few things to keep in mind when using portamento:

1) First of all, it is clear what kind of portamento is. If it is decorative, in order to grasp the distinct effect of the guest and host, the bow and finger movement should be light in decorative sound and heavy in primary sound. The transition between the decorative tone and the original tone should be natural; if it is connected, it should be integrated, and the sky is seamless. Portamento fingers move as the wrist moves up and down. If you simply move up and down on the string with your fingers, this movement is not agile, the intensity is not easy to control, and the effect of portamento is more rigid.

2) Generally speaking, it is not allowed to change the bow and strings when playing portamento.

3) The most important thing in playing portamento is to use it properly. If the style and emotional needs of the music are not met, and some unnecessary portamento is inserted, the whole tune will become greasy, distorting the content of the music, and destroying the style and characteristics of the music.