Keyboard Instruments
The keys in the conventional keyboard are arranged such that each C-major scale octave consists of seven white keys which sequentially produce the notes C, D, E, F, G, A and B. It consists of seven white long keys and five black sharp keys per octave, with the long keys making up the C-major scale. The white keys are of equal width and the five black keys produce the notes C', D', E', F', G', A' and B'. One end of the black keys terminates along a smooth continuous line and the corresponding ends of each white key have a portion extended equidistantly. If the width of the portion of the white keys generating sounds B, C, E and F is equal to the first value and the width of the portion of the white keys generating sounds D, G and A is equal to the second value; then the ratio of the first value to the second value is 3:4. Keyboard as similar to piano The similarities include the white keys that form the C-major scale, the width of the keys producing the notes B, C, E and F is one-fourth less than the width of the remaining keys that produce the notes D, G and A. The templates are separated into five adjacent divisions that are equally wide, each division being half the width of either of D, G or A key. This makes the three adjacent divisions as equal to two B, C, E or F keys. Further, two divisions are as wide as one D, G or A key and could be placed to represent all possible scales, thirds, triads and tetrads with their intervals and other features. |

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