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#25 How to replace piano bass string｜Without tools , just measure the number of coils with fingers.

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#13 10 minutes to teach you tuning (Unison, Octave)

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鋼琴硬知識：點為之走音？ (加調音示範) 完整版/ Full explanatory video about the out of tune issue of pianos

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自己给家里的钢琴调律的核心内容都在这里了：胆大、心细、不怕累

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钢琴调音后，你少做了一件事，我自己钢琴调音以后，悟出这个道理

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YAMAHA piano repair 鋼琴維修—鋼琴受潮維修篇了（李先生0989177427）

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#18 Grand piano Regulation technology sharing丨Jack Position丨Let-off丨Drop丨Repetition Spring

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20240501直播完整版》鋼琴多久要調音？很少彈或很久沒彈也要調音嗎？