Keyboard for a musical instrument

• US 4,031,800 A
• Filed: 07/16/1976
• Issued: 06/28/1977
• Est. Priority Date: 07/16/1976
• Status: Expired due to Term

• Current Assignee: Geary S. Thompson
• Original Assignee: Geary S. Thompson
• Inventors: Thompson, Geary S.
• Primary Examiner(s): Franklin, Lawrence R.
• Application Number:
  US05/705,789
• Time in Patent Office: 347 Days
• Field of Search: 84/423, 84/451
• US Class Current: 84/423.00R
• CPC Class Codes: G10C 3/12 Keyboards; Keys

Abstract

Geometrically, my keyboard is characterized by a two-dimensional pattern of at least six horizontal and at least six vertical rows of keys. The center-to-center spacing between adjacent keys, both horizontally and vertically, is no greater than about one inch. Musically, the tones represented by the keys are arranged from left to right in ascending half-steps or in evenly spaced microtones and are stacked vertically in ascending perfect fourths. In preferred form, my keyboard comprises sixteen horizontal rows of keys and sixteen vertical rows of keys and possesses a tonal range that is slightly greater than the tonal range of a conventional piano.

Claims

1. A keyboard for a musical instrument of a type which includes means for producing musical tones when the keys are touched, wherein each key of the keyboard represents a particular tone, said keyboard comprising a two-dimensional pattern of at least six horizontal rows of keys and at least six perpendicular vertical rows of keys, wherein the tones represented by the keys are arranged horizontally from left to right in ascending half-steps and are stacked vertically in ascending perfect fourths, and wherein the center-to-center spacing of the keys, both horizontally and vertically, is no greater than about one inch.

2. A keyboard according to claim 1, comprising keys representing tones susbstantially within the tonal range of a standard piano.

3. A keyboard according to claim 1, comprising sixteen horizontal rows of keys and sixteen vertical rows of keys, and wherein the lower left corner key represents a subcontra G sharp tone, and wherein the upper right corner key represents a five-line d tone.

4. A keyboard according to claim 1, comprising six horizontal rows of keys and twelve vertical rows of keys, representing tones corresponding to the tonal range of a six-stringed and fretted instrument tuned in fourths, so that the tones actuated by fingering said keys are identical to the tones produced by the same fingering pattern on a six-string stringed, fretted, instrument that is tuned in fourths.

5. A keyboard according to claim 4, wherein the lower left corner key of such six horizontal rows and twelve vertical rows group of keys represents an E tone and the upper right corner key of the group represents an e" tone.

6. A keyboard according to claim 1, comprising keys representing tones within the tonal range of academic four part writing, viz. soprano, alto, tenor and bass tones, wherein the lower left corner key of such group of keys represents an E tone and the upper right corner key of such group represents an a♯

" tone.

7. A keyboard for a musical instrument of a type which includes means for producing musical tones when the keys are touched, wherein each key of the keyboard represents a particular tone, said keyboard comprising a two-dimensional pattern of horizontal and vertical rows of keys, wherein the tones represented by the keys are arranged horizontally from the left to right in even microtones and are stacked vertically in perfect fourths, wherein the center-to-center spacing of the keys, both horizontally and vertically, is not greater than about one inch;

and wherein the keyboard includes at least enough keys so that the first key at the left end of a horizontal row will be the same note as a key at the right end portion of the horizontal row below it.

8. A keyboard according to claim 7, comprising eleven horizontal rows of keys and eleven vertical rows of keys, and wherein the tones represented by the keys are arranged horizontally in quarter steps.