IP Library Granted Patent US 12670889
Granted Patent B1
US 12670889 · App. 18/544,067 · Granted Jun 30, 2026

Guitar chord decoder

Inventor: Jerome Earl Daigre (Roseville, CA)
G10H1/0008
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12670889
App. No.
18/544,067
Granted
Jun 30, 2026
Kind
B1
Abstract

A system for assisting a user in identifying and/or creating chords for a musical instrument such as a guitar comprises a chord decoder device including a root note row including a vertical listing of multiple alphabetic designators representing root notes, and interval relationship rows comprising a vertical listing of root notes in interval relationship for different chords.

Claims (16)

1 . A system for assisting a user in identifying and/or creating chords for a musical instrument, the musical instrument including multiple sound producing elements which are each associated with a root note, the system comprising:

a chord decoder device for identifying and/or creating said chords for said musical instrument, the chord decoder device comprising:

a three-dimensional elongated body configured as a hexagonal prism extending along a longitudinal axis and having a hexagonal cross-sectional profile in a plane transverse to the longitudinal axis, the hexagonal prism supporting at least six longitudinal rows positioned adjacent one another on an outer surface of the hexagonal prism, the six longitudinal rows comprising:

at least one root note row including a longitudinally aligned listing of alphabetic designators, wherein each of the alphabetic designators represents a root note associated with a different one of the multiple sound producing elements,

a first interval relationship row disposed adjacent to a first side of the at least one root note row, the first vertical interval relationship row comprising a longitudinally aligned listing of root notes in interval relationship for a first chord, wherein each of the root notes in the first interval relationship row is laterally aligned with an associated alphabetic designator in the at least one root note row;

a second interval relationship row disposed adjacent to a first side of the first interval relationship row, the second interval relationship row comprising a longitudinally aligned listing of root notes in interval relationship for a second chord, wherein each of the root notes in the second interval relationship row is laterally aligned with an associated root note in the first interval relationship row, the first interval relationship row being disposed between the at least one root note row and the second interval relationship row;

a third interval relationship row disposed adjacent to a first side of the second interval relationship row, the third interval relationship row comprising a longitudinally aligned listing of root notes in interval relationship for a third chord wherein each of the root notes in the third interval relationship row is laterally aligned with an associated root note in the second interval relationship row, the second interval relationship row being disposed between the first interval relationship row and the third interval relationship row;

a fourth interval relationship row disposed adjacent to a first side of the third interval relationship row, the fourth interval relationship row comprising a longitudinally aligned listing of root notes in interval relationship for a fourth chord wherein each of the root notes in the fourth interval relationship row is laterally aligned with an associated root note in the third interval relationship row, the third interval relationship row being disposed between the second interval relationship row and the fourth interval relationship row; and

a fifth interval relationship row disposed adjacent to a first side of the fourth interval relationship row, the fifth interval relationship row comprising a longitudinally aligned listing of root notes in interval relationship for a fifth chord wherein each of the root notes in the fifth interval relationship row is laterally aligned with an associated root note in the fourth interval relationship row, and wherein each of the root notes in the fifth interval relationship row is laterally aligned with an associated alphabetic designator in the at least one root note row, the fourth interval relationship row being disposed between the third interval relationship row and the fifth interval relationship row, and the fifth interval relationship row being disposed between the fourth interval relationship row and the at least one root note row; and

the chord decoder device further comprising a top end cap and a bottom end cap, and a magnetic element disposed on at least one of the top end cap and the bottom end cap, the magnetic element being configured to attach the chord decoder device to a metallic music stand and to permit rotation of the chord decoder device relative to the music stand to which it is attached.

2 . The system of claim 1 , wherein each row in the first interval relationship row, the second interval relationship row, the third interval relationship row, the fourth interval relationship row, and the fifth interval relationship row includes a prominent root note marker aligned horizontally across from a corresponding alphabetic designator in the root note row.

3 . The system of claim 2 , further comprising a guitar, the sound producing elements being guitar strings.

4 . The system of claim 3 , wherein the root note row, the first interval relationship row, the second interval relationship row, the third interval relationship row, the fourth interval relationship row, and the fifth interval relationship row are printed on a 2-dimensional label.

5 . The system of claim 1 , wherein each longitudinal row of the at least six longitudinal rows includes at least 6 longitudinally aligned listed items.

6 . The system of claim 2 , wherein the prominent root note marker is indicated by the number 1 .

7 . The system of claim 1 , wherein the hexagonal prism includes six longitudinal faces, and wherein the first interval relationship row is disposed on a first face of the six longitudinal faces, the second interval relationship row is disposed on a second face of the six longitudinal faces, the second face being adjacent the first face, the third interval relationship row being disposed on a third face of the six longitudinal faces, the third face being adjacent the second face, the fourth interval relationship row being disposed on a fourth face of the six longitudinal faces, the fourth face being adjacent the third face, the fifth interval relationship row being disposed on a fifth face of the six longitudinal faces, the fifth face being adjacent the fourth face, and a sixth face of the six longitudinal faces being adjacent the fifth face and the first face.