专利名称：Keyboard simulation with vertical inversion indexes
老板我爱你最牛小学生作文发明人：Verna M. Leonard
申请号：US06/141577
申请日：19800418
公开号：US04295407A
公开日：前天用英语怎么说
不被爱的人19811020樱桃番茄
专利内容由知识产权出版社提供
摘要：A teaching aid simplifies the understanding and practicing of the inversions of the major triads of the diatonic scale by utilizing a ries of inrt cards which slide into a simulated keyboard and read up vertically duplicate ts of the scale tones of the triad beginning with the underlying keyboard tone. In contrast with the usual method of inversion indication, wherein quential indicia point out inversions on the keyboard itlf, or on a horizontal scale, by reading up vertically rather than horizontally the student is able to easily e the inversion arrangement without confusing it with the keys that he is playing.
申请人：LEONARD; VERNA M.
代理人：Ralph S. Branscomb
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