BTW,

来源: Passerby 于 2015-06-24 09:12:37 [] [旧帖] [给我悄悄话] 本文已被阅读： 次 (274 bytes)
回答: Some makers recommend 4X / per year 由 Passerby 于 2015-06-24 00:31:34
Most of the manufactories recommend the 1st tuning is to be done around 4-6 weeks. The shortest I have heard is three weeks. My understanding is that anything before that is waste of money. (Like the job on WeChat: 土豪随便). You may check with Kawai：310-631-1771.
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