Importance

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Abstract

A musical keyboard has keys arranged and marked for generating tones of a twelve-tone scale. A first register of keys generates first sets of six tones being whole tones apart in the twelve-tone scale. A second register of keys generates second sets of six tones being whole tones apart in the twelve-tone scale. The tones of each first set are disjoint and half-tones apart from the tones of each second set, and the tones of the first and second set correspond alternately to the twelve-tone scale. The keys on the first register are linearly arranged between the keys on the second register, and the keys on the second register are linearly arranged between the keys on the first register. The keys have markings arranged in units of three unique markings, and the units of three unique markings repeat identically and sequentially on the keys of the first and second registers. Any key with a particular unique marking on one register is linearly disposed approximately halfway between two corresponding keys having the identical particular unique marking on the other register to enable uniform fingering for all transpositions of the twelve-tone scale.

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First Claim