The structures of their breathing inlets are different. Hulusi is convex, hence the name "mouthpiece", while Bawu is not convex, hence the name "mouthpiece". The positions of their breathing inlets are different. The position of the mouth of the gourd wire is at the top, which determines that the gourd wire must be blown vertically, and the mouth of the eighth five-year plan is at the left end, which determines that the eighth five-year plan must be blown horizontally.
2, hitting the mouth is different
Because the structure of cucurbit silk mouthpiece is different from that of Bawu mouthpiece, the shape of its mouthpiece is very different, so there is a saying among Dai people that "cucurbit silk is blown with pout, and Bawu is blown with bared teeth". Two people's standard mouth is:
Hulusi: The performance mouth is similar to the pronunciation mouth of the Chinese character "Du".
Eighty-five: the mouth is similar to the pronunciation mouth of the Chinese character "Qi (grin)".
3. The method of exhaling is different.
The correct way to exhale is:
Hulusi: "T" stands for "Tu" in Chinese Pinyin; "K" stands for "ku" in Chinese Pinyin.
Eighth Five-Year Plan: "T" stands for "Te" in Chinese Pinyin; "K" means "Ke" in Chinese Pinyin.
After careful tasting, we can realize that it is difficult to pronounce "special" and "ke" accurately with a pout, and it is also difficult to pronounce "tu" and "cool" accurately with a grin. Therefore, it is unscientific not to distinguish between phonation and exhalation.
It is meaningless to emphasize tone.
From the above analysis, we can also get an off-topic gain, that is, when learning and practicing cucurbit flute, we don't have to consider some concepts involved in flute playing, such as tune, mouth force and damper. I can tell every fan responsibly that I don't need to waste your precious time and energy in this respect.
Extended data
1, reed structure is very special, mainly composed of three parts, namely natural gourd, bamboo tube and copper reed, so the three main parts should be carefully selected. The appearance of cucurbit silk should be fine and beautiful, and then look at the three components separately.
2, the choice of gas box gourd: to choose a mature gourd, yellow color, thick and strong skin; Immature gourd skin is thin, pale and easy to damage.
3. The choice of bamboo tube is very important, because it directly affects the timbre. A good gourd silk, first of all, must be fine and mature, with a certain weight, but if it is too light, it is not suitable.
4. The choice of reed is particularly important. The quality of reeds should have certain technical standards, vibration frequency and fatigue resistance. These indexes can't be verified because of the limited conditions, and they can only be selected by trying to feel the sound produced by reed vibration and bamboo tube coupling.
5. The most important thing to buy cucurbit silk is intonation. Because the change of temperature difference has a great influence on the vibration frequency of reed, the smaller the contrast of a good cucurbit silk, the better and more stable. In order to recognize the pitch, the lowest note 5 and the highest note 6 are played with the fingering of full bass 5. If there is no problem in the trial of these two sounds, play the scale again to see if each sound is pronounced clean and there is no noise (beep).
6. Attachment requirements: The main criteria are that the pitch is the same as that of the supervisor, the timbre is clean, and the volume is lower than that of the supervisor (the volume cannot exceed that of the supervisor, otherwise it is distracted). If the above conditions can be met, it is a good gourd silk.
Baidu encyclopedia-eighth five-year plan
Baidu Encyclopedia-Hulusi