单词 | piano roll |
释义 | piano roll piano roll n.(名词)A roll of paper containing perforations corresponding to the notes of a musical composition, used in operating a player piano.钢琴滚动条,钢琴纸卷:含有与乐曲音符相对应的孔洞的纸卷,用以操作自动钢琴 |
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