钢琴滚筒以键盘分布为基础的编辑方式低横轴为小节纵轴为低音至高音分布
The piano drum is edited based on the keyboard distribution, with the low horizontal axis representing the measure and the vertical axis representing the distribution from low to high notes
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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模块上移
模块下移
不移动