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本讲座介绍了三角钢琴调律调整震奏杆弹簧调整的全过程，由雅马哈特级钢琴技师邹德庭主讲,采用与雅马哈完全一致的钢琴调律教学方法,不用出门就能学到先进的雅马哈钢琴调律技术。完整视频请v:detingzou
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