2-note "Chords" (Intervals)

The two-note patterns (Intervals) are not a chords using the traditional definition. They are included here to help set up later patterns and for completeness.

The more common forms of the intervals are here. Full chart:

Enharmonic Intervals Chart

The Inversion column is more accurately desrcribed as the complement interval. The two intervals add up to an octave. Tritone has only one "mode" because the complement is itself.

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Interval

Fingering Link

Formula

Pitch Class

#

Inversion Group

Enharmonic C

Enharmonic G

Enharmonic D

Enharmonic A

Enharmonic E

Enharmonic B

Enharmonic F#

Enharmonic C#

Enharmonic F

Enharmonic Bb

Enharmonic Eb

Enharmonic Ab

Enharmonic Db

Enharmonic Gb

Enharmonic Cb

2_1_1_1_P5

P5

(none yet)

R,5

{0,7}

1

P5

C,G

G,D

D,A

A,E

E,B

B,F#

F#,C#

C#,G#

F,C

Bb,F

Eb,Bb

Ab,Eb

Db,Ab

Gb,Db

Cb,Gb

2_1_1_2_P4

P4

R,4

{0,5}

2

P5

C,F

G,C

D,G

A,D

E,A

B,E

F#,B

C#,F#

F,Bb

Bb,Eb

Eb,Ab

Ab,Db

Db,Gb

Gb,Cb

Cb,Fb

2_1_2_1_M3

M3

R,3

{0,4}

1

M3

C,E

G,B

D,F#

A,C#

E,G#

B,D#

F#,A#

C#,F#

F,A

Bb,D

Eb,G

Ab,C

Db,F

Gb,Bb

Cb,Eb

2_1_2_2_A5_m6

A5,m6

R,#5 or R,b6

{0,8}

2

M3

C,G#

G,D#

D,A#

A,E#

E,B#

B,Fx

F#,Cx

C#,Gx

F,C#

Bb,F#

Eb,B

Ab,E

Db,A

Gb,D

Cb,G

2_1_3_1_m3

m3

R,b3

{0,3}

1

m3

C,Eb

G,Bb

D,F

A,C

E,G

B,D

F#,A

C#,F

F,Ab

Bb,Db

Eb,Gb

Ab,Cb

Db,Fb

Gb,Bbb

Cb,Ebb

2_1_3_2_M6

M6

R,6

{0,9}

2

m3

C,A

G,E

D,B

A,F#

E,C#

B,G#

F#,D#

C#,A#

F,D

Bb,G

Eb,C

Ab,F

Db,Bb

Gb,Eb

Cb,Ab

2_1_4_1_m7

m7

R,b7

{0,10}

1

m7

C,Bb

G,F

D,C

A,G

E,D

B,A

F#,E

C#,B

F,Eb

Bb,Ab

Eb,Db

Ab,Gb

Db,Cb

Gb,Fbb

Cb,Bbb

2_1_4_2_M2

M2

R,2

{0,2}

2

m7

C,D

G,A

D,E

A,B

E,F#

B,C#

F#,G#

C#,D#

F,G

Bb,C

Eb,F

Ab,Bb

Db,Eb

Gb,Ab

Cb,Db

2_1_5_1_M7

M7

R,7

{0,11}

1

M7

C,B

G,F#

D,C#

A,G#

E,D#

B,A#

F#,E#

C#,B#

F,E

Bb,A

Eb,D

Ab,G

Db,C

Gb,Fb

Cb,Bb

2_1_5_2_m2

m2

R,b2

{0,1}

2

M7

C,Db

G,Ab

D,Eb

A,Bb

E,F

B,C

F#,G

C#,D

F,Gb

Bb,Cb

Eb,Fb

Ab,Bbb

Db,Ebb

Gb,Abb

Cb,Dbb

2_1_6_1_D5_A4_Tritone

Tritone,D5,A4

R,b5 or R,#4

{0,6}

1

Tritone

C,Gb

G,Db

D,Ab

A,Eb

E,Bb

B,F

F#,C

C#,G

F,Cb

Bb,Fb

Eb,Bbb

Ab,Ebb

Db,Abb

Gb,Dbb

Cb,Gbb

Modal groupings after the first few traditional groups are an organizational structure created by Richard Repp extrapolated from avaiable data sources.

© Richard Repp 2019 All Rights Reserved