Method and apparatus for comparing musical works

• US 7,932,455 B2
• Filed: 04/21/2008
• Issued: 04/26/2011
• Est. Priority Date: 04/20/2007
• Status: Expired due to Fees

• Current Assignee: Master Key LLC
• Original Assignee: Master Key LLC
• Inventors: Lemons, Kenneth R.
• Primary Examiner(s): Donels; Jeffrey
• Application Number:
  US12/148,566
• Publication Number:
  US 20080276791A1
• Time in Patent Office: 1,100 Days
• Field of Search: 844/64.R, 844/70.R, 844/71.R, 844/832
• US Class Current: 84/483.2
• CPC Class Codes: G10H 1/0008 Associated control or indicating means
• CPC Class Codes: G10H 1/383 Chord detection and/or recognition, e.g. for correction, or automatic bass generation
• CPC Class Codes: G10H 2210/066 for pitch analysis as part of wider processing for musical purposes, e.g. transcription, musical performance evaluation; Pitch recognition, e.g. in polyphonic sounds; Estimation or use of missing fundamental
• CPC Class Codes: G10H 2220/005 Non-interactive screen display of musical or status data graphical user interfaces specifically adapted for electrophonic musical instruments G10H2220/091; fingering displays G10H2220/041

Abstract

The present disclosure relates to audio and music processing devices and methods. A system is provided that utilizes tonal and rhythmic visualization methods to accurately and empirically determine the level of similarity between two or more musical works.

Claims

1. A system for comparing musical works, comprising:

a processing device; and

a display operatively connected to said processing device;

wherein;

said processing device executes computer readable code to create a first visual representation of a first musical structure for output on the display;

wherein;

said processing device executes computer readable code to create a second visual representation of a second musical structure for output on the display;

wherein;

said first visual representation is evaluated by a user to determine the level of similarity to said second visual representation; and

wherein;

said first visual representation and said second visual representation are generated according to a method comprising the steps of;

(a) placing twelve labels in a pattern of a circle, said twelve labels corresponding to twelve respective notes in an octave, such that moving clockwise or counter-clockwise between adjacent ones of said labels represents a musical half-step;

(b) identifying an occurrence of a first one of the twelve notes within said musical structure;

(c) identifying an occurrence of a second one of the twelve notes within said musical structure;

(d) identifying a first label corresponding to the first note;

(e) identifying a second label corresponding to the second note;

(f) creating a first line connecting the first label and the second label, wherein;

(1) the first line is a first color if the first note and the second note are separated by a half step;

(2) the first line is a second color if the first note and the second note are separated by a whole step;

(3) the first line is a third color if the first note and the second note are separated by a minor third;

(4) the first line is a fourth color if the first note and the second note are separated by a major third;

(5) the first line is a fifth color if the first note and the second note are separated by a perfect fourth; and

(6) the first line is a sixth color if the first note and the second note are separated by a tri-tone.

2. The system of claim 1, wherein the first color is red, the second color is orange, the third color is yellow, the fourth color is green, the fifth color is blue and the sixth color is purple.

3. The system of claim 1, wherein:

the first color has a first frequency that is lower than a second frequency of the second color;

the second frequency is lower than a third frequency of the third color;

the third frequency is lower than a fourth frequency of the fourth color;

the fourth frequency is lower than a fifth frequency of the fifth color; and

the fifth frequency is lower than a sixth frequency of the sixth color.

4. The system of claim 1, wherein step (a) further comprises arranging each of the twelve labels to be substantially evenly spaced from each adjacent label.

5. The system of claim 4, wherein step (a) further comprises arranging each of the twelve labels to be spaced 30 degrees from each adjacent label.

6. The system of claim 1, further comprising the steps of:

(g) identifying the occurrence of a third one of the twelve notes;

(h) identifying a third label corresponding to the third note;

(i) creating a second line connecting the second label and the third label; and

(j) creating a third line connecting the third label and the first label.

7. The system of claim 1, wherein the labels corresponding to notes common to both said first musical structure and said second musical structure are highlighted on the display.

8. The system of claim 1, wherein said line within said first visual representation and said line within said second visual representation are displayed between said labels on a single said circle.

9. A system for comparing musical works, comprising:

a processing device; and

a display operatively connected to said processing device;

wherein;

said processing device executes computer readable code to create a first visual representation of a first musical structure for output on the display;

wherein;

said processing device executes computer readable code to create a second visual representation of a second musical structure for output on the display;

wherein;

said first visual representation is evaluated by a user to determine the level of similarity to said second visual representation; and

wherein;

said first visual representation and said second visual representation are generated according to a method comprising the steps of;

(a) providing a plurality of labels in a pattern of a helix, wherein;

(1) each turn of the helix has a respective plurality of labels corresponding to a plurality of respective sounds in a respective plurality of frequency ranges; and

(2) moving clockwise or counter-clockwise on the helix between any one of said labels represents a first frequency interval;

(b) identifying an occurrence of a first sound within said musical structure;

(c) identifying which of the plurality of respective sounds and which respective plurality of frequency ranges corresponds to the first sound;

(d) identifying an occurrence of a second sound within said musical structure;

(e) identifying which of the plurality of respective sounds and which respective plurality of frequency ranges corresponds to the second sound;

(f) identifying a first label corresponding to the first sound;

(g) identifying a second label corresponding to the second sound;

(h) creating a first line connecting the first label and the second label, wherein;

(1) the first line is a first color if the first sound and the second sound are separated by the first frequency interval;

(2) the first line is a second color if the first sound and the second sound are separated by a second frequency interval;

(3) the first line is a third color if the first sound and the second sound are separated by a third frequency interval;

(4) the first line is a fourth color if the first sound and the second sound are separated by a fourth frequency interval;

(5) the first line is a fifth color if the first sound and the second sound are separated by a fifth frequency interval; and

(6) the first line is a sixth color if the first sound and the second sound are separated by a sixth frequency interval.

10. The method of claim 9, wherein the plurality of respective sounds comprise a plurality of musical notes and the plurality of frequency ranges comprise a plurality of octaves.

11. The method of claim 10, wherein like notes from all octaves lie in a straight line.

12. The method of claim 9, wherein step (a) further comprises arranging each one of the labels to be substantially evenly spaced from each adjacent label.

13. The method of claim 10, wherein the plurality of labels comprises twelve labels and step (a) further comprises arranging each of the labels to be spaced 30 degrees from each adjacent label.

14. The method of claim 9, wherein the first color is red, the second color is orange, the third color is yellow, the fourth color is green, the fifth color is blue and the sixth color is purple.

15. The method of claim 9, wherein the first interval is a half-step, the second interval is a whole step, the third interval is a minor third, the fourth interval is a major third, the fifth interval is a perfect fourth, and the sixth interval is a tri-tone.

16. The system of claim 9, further comprising the steps of:

(i) identifying the occurrence of a third sound within said musical structure;

(j) identifying which of the plurality of respective sounds and which respective frequency range corresponds to the third sound;

(k) identifying a third label corresponding to the third sound;

(l) creating a second line connecting the second label and the third label; and

(m) creating a third line connecting the third label and the first label.

17. The system of claim 9, wherein the labels corresponding to notes common to both said first musical structure and said second musical structure are highlighted on the display.

18. The system of claim 9, wherein said line within said first visual representation and said line within said second visual representation are displayed between said labels on a single said circle.