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钢琴一般是85或88个键，用电子钢琴对以后学习钢琴的影响小一些，但力度还是有区别，以后改钢琴还是需要矫正。
zhwil28
(melody)
(#356540@0)
Last Updated: 2002-2-2
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我是一个钢琴老师...
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