dominant seventh studies / diatonic proof

The following ideas simply examine the various scales associated with creating melodic ideas over dominant harmony.

1 G pentatonic major
G A B D E G
mode of C major?

1

All of the pitches are diatonic to C major, note that there is no tritone pitch or tritone interval in relation to the pitches of C major.

    D minor 7   G major  C major 9  C major 9

5type1.TIF (7642 bytes)

2 G pentatonic minor
G Bb C D F G
adds a blue 7th

2

The non diatonic pitch Bb is the blue 7th in relation to C major.

  D minor 7    G 7 #9    C 9   C 7

5type2.TIF (7808 bytes)

3

G minor blues
G Bb C C# D F G
minor pentatonic + tritone

3

Adding the tritone to the minor pentatonic color to create the minor blues scale.

  D minor 7    G 7 #9    C 9   C 7

5type3.TIF (8062 bytes)

4

G Mixolydian

G A B C D E F G
diatonic mode of C major

4

All of the pitches are diatonic to C major.

  D minor 7    G 7    C major 9   C major 7

5type4.TIF (7514 bytes)

5 G Lydian b7
G A B C# D E F G
also D melodic minor

5

Common substitution for Mixolydian, simply raises the 4th by half step adding a bit of the whole tone color.

  D minor 7   G 7 b5   C major 9   C major 7

5type5.TIF (7628 bytes)

6 A minor pentatonic
A   C D E   G A
ancient color

6

Based on the relative minor to C major, in a pentatonic, five note configuration.

  D minor 7  G 7  C major 9   C major 7

5type6.TIF (7400 bytes)

7 A Aeolian
A B C D E F G A
diatonic mode of C major

7

All of the pitches are diatonic to C major. Building the Aeolian mode on the 6th degree of the major scale is also termed the relative or natural minor scale.

  D minor 7  G 7   C major 9   C major 7

5type7.TIF (7544 bytes)

8 B Locrian
B C D E F G A B
diatonic mode of C major.

8

All of the pitches are diatonic to C major, note that the pitch B is the leading tone to C major.

  D minor 7  G 7  C major 9  C major 7

5type8.TIF (7472 bytes)

9 C Ionian
C D E F G A B C
diatonic mode of C major

9

All of the pitches are diatonic to C major, using the pitch C to create the essential 4 - 3 harmonic suspension in bar 34.

 D minor 7 G 7 sus4 G 7 C major 9  C major 7

5type9.TIF (7714 bytes)

10

D Dorian
D E F G A B C D
diatonic mode of C major. 10

All of the pitches are diatonic to C major.

  D minor 7 G 7 C major 9   C major 7

5type10.TIF (7482 bytes)

11 E Phrygian
E F G A B C D E
diatonic mode of C major.

11

All of the pitches are diatonic to C major, here we use the root of the mode in the soprano voice of the dominant chord creating the G 13th chord.

D minor 7 G 13 C major 7 C major 7

5type11.TIF (7632 bytes)

12

F Lydian
F G A B C D E F
diatonic mode of C major.

12

All of the pitches are diatonic to C major. Using the Lydian mode over dominant harmony is a cool jazz approach.

 D minor 7  G 7  C major 9  C major 7

5type12.TIF (7600 bytes)

13 F Lydian b7
F G A B C D Eb F
altered Lydian mode.

13

Altering the mode to include a blue 7th, which adds a bit of whole tone color to the dominant chord.

  D Ø 7 G 7 +5 C minor 7 C minor 7

5type13.TIF (8046 bytes)

Using the half diminished Two chord to V 7 + 5 sets up the motion to the minor tonality. Perhaps a welcome relief after all this joyous, major tonality?

14 G chromatic scale
G Ab A Bb B C Db D Eb E F F# G
all 12 pitches.

14

Well, there we must be able to create something out of all these pitches. Coolness of the chromatic color to blur the tonal direction.

   D minor 7 G 7 C maj 9   C major 7

5type14.TIF (7562 bytes)

What's next? On to the diminished studies perhaps?

The art of being wise is the art of knowing what to overlook. William James