Vibrato is a common technique in the performances of Hulusi and Bawu. With vibrato in the music, the expressiveness of the music is more abundant. Especially the fast vibrato in the climax can be exciting. For example, "Golden Peacock" and "Amorous Bau" are two pieces of music that everyone loves. In addition to the beautiful melody, the most important point is the use of vibrato performance, which makes the music more cheerful, full of charm, and amazing. And intoxicated.

The vibrato can make the blown sound have a wavy feeling. It is represented by tr in the score. The method of playing is very simple. It is repeated between the original note and the upper second. Add an Arabic number, such as 3 above the tr, it means the original sound and the upper third are repeated. If there is no number marked above tr, it means that the original tone and the upper second tone are played repeatedly. Everyone should pay attention to one thing. The vibrato of 3 in Huludie and Bawu is generally played as 3535353 instead of 3434343, because this way of playing first It is uncomfortable to hear, because the sound of 4 is very unreal in Hulusi and Bauri. Secondly, the fingering of 4 is a bit complicated, and the conversion of 3 is very fast, which is very awkward and difficult. Therefore, the vibrato of 3 is usually played as 35353 without special requirements.

The practice of vibrato is a long-term practice. Although the method is simple, it will take a certain amount of time to be proficient and fast. When practicing, start slowly and gradually speed up after you are proficient. When practicing, whether fast or slow, the speed should be consistent, not fast or slow, pay attention to strengthen the training of the ring fingers of both hands.