The so-called natural weight first refers to the weight of the arm, and then refers to the addition and combination of other parts of the body. If you do not use weights in your playing, the sound will inevitably be thin, shallow and lacking in expressiveness.

There should be a process in the use and training of weights. The first is to learn to put all the weight of the arms down and produce a full and honest voice. The adjustment of the weight must be based on the fact that the strength can be completely put down, and the weight of the strings can be changed according to the strength and thickness of the sound required by the music.

If the sound is strong, you can combine the strength of the body; if the sound is weak, you can control the weight to a minimum. But it needs to be emphasized that for the transparency of the sound, no matter what the weight is, it must be clearly "sent" to the strings through the fingertips. Only in this way can the faintest sound reach the ears of the audience in the last row of the concert hall clearly and clearly.

To sum up, the concept of weight includes the total arm weight plus the weight that the body can add to the arm; it also includes adjusted and controlled, even the smallest weight. Such large and small weights, through flexible and natural changes and applications, provide great possibilities for our sound changes.