Cork in dizi

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Hi all, I have yet another question for everyone!
Everytime after I finish practicing the dizi, I make sure to swab it before putting it back into place (otherwise fungus seems to grow).. However, everytime I swab it, I almost accidentally very slightly nudge against the cork.. especially trying to get those hard to reach areas near the cork (cleaning completely wth water is only an option once in a while, since there is the dimo)

I am wondering if anyone knows what is used to secure the cork in the dizi in place? I don't want to move hte cork accidentally whilst cleaning, putting the whole dizi out of tune. Is it very easy to move the cork in the dizis??

[YouLanFengChune]

AVOID At all costs from touching the cork.

Cadenza dizi have a movable cork, though snugly tucked to prevent movement. Nudging may move the cork, which is moved for tuning, tonal and even response purposes. By moving the cork, i can make the basses of the dizi low and deep, or the highs shrill and sweet...

Fungus won't grow that easily. If u really need to clean, put a pieace of cloth, attached to a string, attached to small lead weight through the blow hole. and let it fall through.

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Hello Yinhao!
Thanks for the information. But now I am a bit worried actually. How much force do you need to move the cork for adjustments? Is even a slight touch/nudge enough to dislodge it? When I nudge against it, it is more like touching the cork, but at any rate I will now try the cloth cleaning technique.

Also, do you know what will happen to the tune/tone/etc.. if the cork is moved slightly inwards?

[YouLanFengChune]

move it inwards a bit, the tone will tend to be deeper. BUT at the exprense on the highs. the balance is important.