Whether it is plucking, one-shot or pulling, there are a few things that must be paid attention to when practicing:

1) The bow hair should avoid the plucked string, otherwise the crisp plucking sound will not be plucked at all.

2) Pluck the strings lightly and swiftly with your fingertips (thumb nails). If the plucking sound is obtained by pressing and sliding the fingertips on the strings, it is easy to touch another string, making the plucking effect appear cloudy and fuzzy.

3) The timing of plucking should be accurate, which is still very important in plucking and plucking.

4) The plucked strings must be used properly and cannot be abused arbitrarily.

In order to make the plucking effect crisp and bright, in addition to the agility and accuracy of the action, the quality of the instrument itself, the structure and the quality of some accessories are also very important. Generally speaking, the plucking effect of low-end erhu is not as ideal as that of high-end erhu. The effect of steel strings is better than that of silk strings; the effect of "S"-shaped metal daughters is better than that of directly using cloth strips and leather strips to tie the strings; the pine bridges are better than those of other materials, and the golds are farther away from the bridges than closer. The effect is good. We want to replace these attachments where possible to get a better string plucking effect.

The main problems that are prone to occur in playing the plucked strings are as follows:

1. When pulling the strings, the finger meat "eats the strings" too deeply, so that the pronunciation is slow, and the sound is often later than the beat, and the sound is hard and there is no sufficient reverberation.

2. When the left hand is in the ring finger, the volume of the three fingers is not balanced, or because the fingers are restrained by each other and lack of independence, the strings cannot be played evenly in turn. (For example, the allegro at the end of "The Grapes Are Ripe")

3. When plucking the strings with the left hand and playing with the right hand, the phenomenon of unbalanced volume of the double strings is prone to occur. Often, the volume of the right hand plucking is too large, but the left hand plucking makes no sound.

4. The position of the right hand plucking string is not appropriate, which will make the vibration of the string insufficient, and the sound will be hollow and divergent. It is best to pluck the strings with your fingertips.

5. The actions of the right hand plucking and the left hand pressing the fingers are not tacit, so that the points of the actions of the two hands cannot be aligned together, which will not only make the pronunciation ambiguous, but also affect the accuracy of the rhythm.

6. During plucking, the strings cannot vibrate freely because the bow hair touches the strings, resulting in hoarse pronunciation or noise.