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新出厂的钢琴,在第一年里琴弦的张力变化最频繁,这是因为琴弦的展延性经过一段时间才能逐渐消失,所以要想使钢琴的音律稳定住是需要费一定功夫的。调这类钢琴,首先用A440赫音叉,把标准音(a~1)的频率调准。扭动扳子的方法必须是正确的,扳子柄应朝上或朝左方向;无论如何决不能往下压弦轴,否则容易造成弦轴孔扩大、弦轴松动。当把标准音调得与音叉一致时,用力击键,使音高稳定住。接着用五度、四度循环法调基准音组。基准音组调好后再开始上行八度、下行八度的调音。
The new piano has the strongest string tension in the first year because the ductility of the string gradually disappears over a period of time, so it takes some effort to stabilize the piano’s melody. Adjust this type of piano, first with A440 heft fork, the standard sound (a ~ 1) frequency alignment. The method of twisting the wrench must be correct. The wrench of the wrench should be in the upward or leftward direction. In any case, the string shaft must never be pressed down. Otherwise, the string hole will easily expand and the string shaft will loose. When the standard tone is consistent with the tuning fork, hard keystrokes, the pitch stable. Then use the five degrees, four degrees cycle reference tone group. After adjusting the reference tone group, it will start up octave and down octave down.