1. Long tone is to blow a sound long. The length of each long tone should be between 10 and 30 seconds. The bass needs more breath and the length is shorter. The reason why it is easy to occur is that the length is longer. For beginners, the breath control is not good, and the sound is shorter, but there is a problem that needs to be paid attention to, that is, you cannot ignore the timbre, sound quality and volume for the sake of length. That is to say, the timbre of the long note should be beautiful, the sound quality should be firm, and the volume should be moderate (which does not include some purposeful long note practice, such as a long note that is designed to practice dynamics).

2. The breathing of each long tone should be natural breathing, and the breathing should be deep, fast and full. Inhaling deeply means you can hold your breath after inhaling. Inhaling fast means that there will be no gaps in the connection of phrases in future performances. A full breath means being able to play long phrases.

3. The coordination of breath and tongue is very important at the time of pronunciation. They determine whether the sound of a sound is neat or not, and also determine the connection of each part of the long sound! A complete long note can be divided into a head, a belly and a tail. None of these steps should be sloppy. The head is mainly composed of breath, tongue and tone of voice. If the tone of voice is small, it cannot produce a good sound. The atmosphere is scattered, the tone is not good, and the sound head is not elastic. In the process of playing the belly, the tone and air flow, the intensity of the sound and the relaxation of the whole body should also be maintained, and the sound should be kept stable.

At the end of the sound, the breath is already weak, and the pressure in the abdomen gradually decreases. In this case, attention should be paid to maintaining the accuracy and volume of the sound, and the sound should not be lowered or the volume should be reduced due to the decrease in the volume of breath. Exhausted, but to leave some residual gas, if the gas is exhausted, not only the person is uncomfortable, but also the abdomen takes a long time to rebound, which affects the inhalation of fresh air and makes the performance lose the coherence. In order to make the sound blow longer, we should pay attention to saving breath at the beginning.

Beginners of cucurbit flute often waste a lot of air on the pitch, because they can't grasp the amount of breath needed by the pitch, and the breath is too large, blowing the pitch. And when the sound is in the abdomen, it is easy to not control the flow of breath, so that the sound is sometimes strong and sometimes weak, and the end of the sound is not collected in time, so that the sound drops and even the tail sound appears.