1. The structure and position are different

The breath entrance structures of the two are different. Hulusi is "protruding", hence the name "mouthpiece", while Bawu is "not protruding", hence It is named "Blow the Mouth". The positions of the breath entrances of the two are different. The position of the Hulusi mouthpiece is at the top, which determines that the Hulusi must be blown vertically, while the Bawu mouthpiece is located at the left end, which determines that the Bawu must be blown horizontally.

2. The playing mouth shapes are different

Due to the different structures of the Hulusi "mouthpiece" and the Bawu "mouthpiece", the playing mouth shapes of the two are also very different. Therefore, among the Dai people, there is a saying of "blowing the gourd with a pout and blowing the bawu with a grin". The standard playing mouth shapes for both are:

Hulusi: The playing mouth shape is similar to the pronunciation mouth shape of the Chinese character "house (pout)".

Bawu: The mouth shape is similar to the pronunciation shape of the Chinese character "qi (grin)".

3. The exhalation methods are different

The correct exhalation methods for the two are:

Hulusi: "T" means the flat tone of Chinese Pinyin "tu" "; "K" represents the flat sound of "ku" in Chinese Pinyin.

Bawu: "T" means "te", the flat tone of Chinese Pinyin; "K" means "ke", the flat tone of Chinese Pinyin.

After careful taste, you can realize that it is difficult to pronounce "te" and "ke" accurately with "pouting", and it is also difficult to pronounce "tu" and "ku" accurately with "grinning" . Therefore, it is unscientific not to differentiate between the two in terms of the way they pronounce and exhale.

4. Emphasizing that the tone of mouth is meaningless

From the above analysis, we can also get an extra-topic gain, that is, when learning to practice Hulusi Bawu, there is no need to consider the tone of the mouth, the strength of the mouth, the wind gate, etc. Some concepts only involved in playing the flute. I can responsibly tell every fan that there is no need to waste your precious time and energy on this.

Extended information

1. The structure of reed silk is very special. It mainly consists of three parts, namely natural gourd, bamboo tube and copper reed, so there are three main parts in the selection. Components should all be carefully screened. The appearance of Hulusi should be delicate and beautiful, and then let’s look at the three components separately.

2. Selection of air box hoist: Choose mature gourds with yellow color and thick and strong skin; immature gourds have thin skin, white color and are easily damaged.

3. The choice of bamboo tube is very important, because it directly affects the quality of the sound. A good cucurbit silk should first of all be made of fine, mature bamboo, relatively speaking, it should have a certain weight, and it would be inappropriate if it is too light.

4. The selection of reeds is particularly important. The quality of reeds should have certain technical standards, such as vibration frequency, fatigue resistance, etc. These indicators cannot be verified due to limited conditions and can only be passed Try to choose based on the sound produced by the coupling between the reed vibration and the bamboo tube.

5. The most important thing when buying cucurbit silk is the issue of intonation. Since changes in temperature have a great impact on the vibration frequency of the reed, the smaller the contrast of a good cucurbit silk, the better, and it is relatively stable. To identify the pitch, use the fingering method of pressing all the way for bass 5. First play the lowest bass 5 and the treble 6. If there are no problems with these two notes, play the scale again to see if each note is pronounced cleanly without any noise (beep). .

6. Requirements for the attached pipe: The main standard is that the pitch is the same as that of the main pipe, the sound is clean, and the volume is smaller than that of the main pipe (the volume cannot exceed that of the main pipe, otherwise it will overwhelm the main pipe). If the above conditions are met, it is a good Hulusi.

Baidu Encyclopedia - Bawu

Baidu Encyclopedia - Hulusi