2021-07-11
Soundboard fine tunning of the Jiaoye Qin
Under the special shape constraints of the Jiaoye Qin, the thickness distribution of the Qin soundboardl must be based on the resonance frame of the Qin, but also change accordingly in response to the complex shape of the Jiaoye Qin. A simple understand is to adjust the thickness distribution inside the soundboard cavity in response to changes the outside shape, and there are different tuning project and resonance designs inside the regular straight Qin body (but the wave shape).
In the Qin soundboard fine tuning statge, it will be different according to different Luthier’s tuning experience, timbre orientation, depth of understanding, etc. and even the various secrets tech in each genre. But all of this is inseparable from the most basic musical instrument making standards and musical theory mechanisms, and it is a comprehensive consideration of the sense of hearing.
In contrast, the Jiaoye Qin’s soundboard fine tuning can use D as its main pitches, which extends the range of tuning A=416-440Hz in response to the different tension limits of silk or steel strings. The response frequency of the sounboardl can be in the range of 69.4-76Hz or the lower 48Hz range. After the whole shape was further modified to calibrate to 71.1-73.3Hz. However, if Qin can’t be fine-tuned in outsice after the soundboard and backboard sticked, the soundboard tuning needs to increase its intermodulation offset pitch before.
｛The Qin Luthier-ZiYun｝ 
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