公开(公告)号：US4444083A

公开(公告)日：1984-04-24

申请号：US344640

申请日：1982-02-01

Applicant: Siegfried Apel ,  Marlene Apel

Inventor： Siegfried Apel ,  Marlene Apel

IPC: G09B15/00 ,  G09B15/08 ,  G10C1/00 ,  G10C3/12 ,  G10G1/02

CPC classification number: G09B15/08 ,  G10C3/12

Abstract: Keyboard instrument, in particular a piano or similar instrument that has keys and that can be used in conjunction with aids to learning in the form of templates, characterized in that, of the white keys (long keys 2) that form the C-major scale, the width (b) of the keys that produce the notes B, C, E, and R is 1/4 less than the width (B) of the remaining keys, which produce the notes D, G, and A, so that the ratio of the width of the equally wide keys for B, C, E, and F to the width of the equally wide keys for D, G, and A is 3:4. Templates that are separated into a number of adjacent divisions (5) that are equally wide, each division (5) being 1/2 the width (b) of one D, G, or A key, so that three adjacent divisions (5) will be as wide as two B, C, E, or F keys and two divisions (5) will be as wide as one D, G, or A key can be placed over the keyboard to represent all possible scales, thirds, triads, and tetrads with their inversions, major and minor intervals, cadenzas, transpositions, etc.

Abstract translation: 键盘乐器，特别是具有键的钢琴或类似乐器，其可以与以模板的形式学习的辅助装置结合使用，其特征在于，形成C大尺度的白键（长键2） ，产生音符B，C，E和R的键的宽度（b）比产生音符D，G和A的剩余键的宽度（B）小1/4，使得 B，C，E和F的等宽键的宽度与D，G和A的等宽键的宽度之比为3：4。 被分成多个相等宽度的相邻部分（5）的模板，每个分割部分（5）是一个D，G或A键的宽度（b）的1/2，使得三个相邻分割部分（5） 将与两个B，C，E或F键一样宽，两个部分（5）将一样宽，一个D，G或A键可以放置在键盘上，以表示所有可能的比例，三分之一，三元组， 和四分之一的反转，主要和次要的间隔，cadenzas，转置等。