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electronic tasteninstrument with an optical display (digits) of the successive toene
electronic tasteninstrument with an optical display (digits) of the successive toene
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机译:具有连续音调的光学显示(数字)的电子趣味乐器
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摘要
A keyboard instrument having a plurality of keys which upon actuation each generate a tone correlated to the respective key, and having a plurality of optical display means on each of said keys, said display means indicating the sequence of the keys to be actuated.
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