Hi all. I'd like to ask: I've just rececntly bought an acoustic guitar and I've learned that I'm supposed keep an eye on humidity levels. So I bought a hygrometer. The levels are at about 40% now, sometimes a few points less. My question is how FAST it could hurt the acoustic guitar? I suppose it's meant rather in the long term? I'm gonna get a humidifier next week.
Thank you!
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