Music comes from life, and pitch and language are closely related. Mandarin Chinese in China is divided into four tones, and there are more tones in various dialects, so it is reflected in the tones, and the charm is particularly rich. This charm is reflected in the left hand, and one of the main aspects is the grasp of the style of the portamento.

From the point of view of the technique, the portamento includes upward slide, slide down, back slide, tail slide, pad finger slide, etc. From the point of view of application. There are one-fingered portamento, different-fingered portamento, a portamento that moves the position, and a portamento that extends the fingers up and down on the same position, and there are various portamentos with different interval distances, and so on. They all have strong links with local dialects.

The most important thing to play portamento well is to accurately grasp the style of music. On this basis, we can easily grasp the proportion of portamento. The same is a sound slide to another, but the portamento scale (mainly reflected in the amplitude of the portamento and the speed of the process) is different, but it will make the music taste very different.

What is recorded on the score is the height, length, intensity, etc. of each note, but it is often impossible to accurately mark how one note moves to another (except for the velocity mark), and it is impossible to record in this movement. What kind of tone, style, flavor and emotion is reflected (except for a few hints of musical terminology). Then, this requires us not only to go deep into the local, but also to analyze each detail from a global perspective. Through the surface of the note, experience the musical language behind the note. Experience the connotation of the movement between the sounds, so that it is possible to grasp the proportions.

The language of Jiangnan sounds soft and less angular, and the music in the Jiangnan region (folk songs, Jiangnan silk and bamboo, etc.) is also similar to its language, softer, the glissando is mostly second or small second, more even and less angular. The very characteristic portamento, such as the pad finger portamento of the minor third, if played too fast and too stiff, it will definitely appear "insufficient in flavor". Of course, you should also see. In addition to the regional characteristics, the style of music also includes the personality characteristics of the composer. For example, A Bing, who also grew up in the south of the Yangtze River, has an upright and determined personality. Therefore, this temperament is always revealed in his works. From the portamento point of view, the slides in his works are all fast and angular. It fully reflects the upright side of his personality.

The softness of Jiangnan music is also reflected in the fact that the portamento is mostly performed between smaller intervals, even the portamento with a large distance interval is slower and more uniform; while the coarse expansion of northwest music is reflected in the more larger distance intervals. The jumping in and the use of portamento, and the portamento with a large distance interval usually starts very quickly, and the later it gets slower, it sounds very angular, which is very different from the charm of the Jiangnan region.

The world of music is rich and changeable, just like language, the same sentence is spoken in different tones and intonations, and we will get completely different feelings, and it is precisely because of the diversity of feelings that the way we express will be infinite. Rich.