Difference between revisions of "7th Chords"
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Only Dominant 7ths, Minor 7ths, Major 7ths, and Half-Diminished 7ths are diatonic to the major and natural minor scales. | Only Dominant 7ths, Minor 7ths, Major 7ths, and Half-Diminished 7ths are diatonic to the major and natural minor scales. | ||
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|+ Major Scale 7th Chords | |+ Major Scale 7th Chords | ||
! Harmonic<br>Name | ! Harmonic<br>Name | ||
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|+ Natural Minor Scale 7th Chords | |+ Natural Minor Scale 7th Chords | ||
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Harmonic Minor uses those but additionally adds an Augmented 7th, a Minor/Major 7th, and a Fully Diminished 7th. Every chord is a unique variation. | Harmonic Minor uses those but additionally adds an Augmented 7th, a Minor/Major 7th, and a Fully Diminished 7th. Every chord is a unique variation. | ||
| − | {| | + | {|class="wikitable" |
|+ Harmonic Minor Scale 7th Chords | |+ Harmonic Minor Scale 7th Chords | ||
! Harmonic<br>Name | ! Harmonic<br>Name | ||
Revision as of 17:51, 27 May 2014
Seventh Chords extend our basic Root-3rd-5th triad chords by adding a 7th (R-3-5-7). This extra note adds an additional degree of harmonic complexity to chords. They can be used to strenghthen or weaken the resolve of cadences, as well as simply making things more interesting. It gives us a much greater variety of chords to choose from.
Contents
PreReqs
Dominant Seventh
| Member Notes | Spelling | Ex. |
|---|---|---|
| (R M3 P5 m7) | R7 (R = Root Note) | G7, (G B D A) |
R |i|-|-| 5 |i|-|-| 3 |)|m|-| 7 |i|-|-| 5 |)|-|r| R |i|-|-| |
7 |-|m|-|-| 3 |i|-|-|-| R |i|-|-|-| 5 |i|-|-|-| 3 |-|-|r|-| R |-|-|-|p| |
5 |i|-|-| 3 |)|-|p| 7 |i|-|-| 5 |)|-|r| R |i|-|-| |-|-|-| |
|-|-|-| R |i|-|-| 7 |-|-|p| 3 |-|m|-| R |-|-|r| |-|-|-| |
3 |-|-|p| 7 |-|m|-| 5 |-|-|r| R |i|-|-| |-|-|-| |-|-|-| |
7 |i|-|-|-|-| 5 |-|-|m|-|-| 3 |-|-|-|r|-| R |-|-|-|-|p| |-|-|-|-|-| |-|-|-|-|-| |
Major Seventh
| Member Notes | Spelling | Ex. |
|---|---|---|
| (R M3 P5 M7) | RMaj7 (R = Root Note) | CMaj7, (C E G B) |
7 |i|-|-|-| |)|-|-|-| 3 |-|)|r|-| 7 |-|)|m|-| 5 |-|)|-|p| R |-|i|-|-| |
7 |-|-|m|-| 3 |i|-|-|-| R |i|-|-|-| 5 |i|-|-|-| 3 |-|-|r|-| R |-|-|-|p| |
5 |i|-|-| 3 |)|-|p| 7 |)|m|-| 5 |)|-|r| R |i|-|-| |-|-|-| |
5 |i|-|-|-| 7 |i|-|-|-| 5 |i|-|-|-| 3 |-|-|m|-| R |-|-|-|r| |-|-|-|-| |
3 |-|-|r| 7 |-|-|r| 5 |-|-|r| R |i|-|-| |-|-|-| |-|-|-| |
7 |i|-|-|-| 5 |-|m|-|-| 3 |-|-|r|-| R |-|-|-|p| |-|-|-|-| |-|-|-|-| |
Minor Seventh
| Member Notes | Spelling | Ex. |
|---|---|---|
| (R m3 P5 m7) | Rm7 (R = Root Note) | Dm7, (D F A C) |
R |i|-|-| 5 |i|-|-| 3 |i|-|-| 7 |i|-|-| 5 |)|-|r| R |i|-|-| |
5 |i|-|-| 3 |)|m|-| 7 |i|-|-| 5 |)|-|r| R |i|-|-| |-|-|-| |
|-|-|-| R |i|-|-| 7 |)|-|p| 3 |i|-|-| R |-|-|r| |-|-|-| |
3 |-|r|-| 7 |-|m|-| 5 |-|-|p| R |i|-|-| |-|-|-| |-|-|-| |
7 |i|-|-|-|-| 5 |-|-|r|-|-| 3 |-|-|m|-|-| R |-|-|-|-|p| |-|-|-|-|-| |-|-|-|-|-| |
Minor/Major Seventh
| Member Notes | Spelling | Ex. |
|---|---|---|
| (R m3 P5 M7) | RmMaj7 (R = Root Note) | DmMaj7, (D F A C#) |
|-|-|-| 5 |i|-|-| 3 |i|-|-| 7 |)|m|-| 5 |)|-|r| R |i|-|-| |
5 |i|-|-| 3 |)|r|-| 7 |)|m|-| 5 |)|-|p| R |i|-|-| |-|-|-| |
|-|-|-|-| R |i|-|-|-| 7 |)|-|-|p| 3 |i|-|-|-| R |-|-|r|-| |-|-|-|-| |
3 |-|m|-| 7 |-|-|p| 5 |-|-|r| R |i|-|-| |-|-|-| |-|-|-| |
7 |i|-|-|-| 5 |-|r|-|-| 3 |-|m|-|-| R |-|-|-|p| |-|-|-|-| |-|-|-|-| |
Half Diminished
| Member Notes | Spelling | Ex. |
|---|---|---|
| (R m3 d5 m7) | Rø7 (R = Root Note) | Bø7, (B D F A) |
|-|-|-| |-|-|-| 3 |i|-|-| 7 |i|-|-| 5 |)|r|-| R |i|-|-| |
|-|-| 3 |)|r| 7 |i|-| 5 |)|m| R |i|-| |-|-| |
3 |-|r|-| 7 |-|r|-| 5 |-|r|-| R |i|-|-| |-|-|-| |-|-|-| |
7 |i|-|-|-|-| 5 |-|m|-|-|-| 3 |-|-|r|-|-| R |-|-|-|-|p| |-|-|-|-|-| |-|-|-|-|-| |
Fully Diminished
| Member Notes | Spelling | Ex. |
|---|---|---|
| (R m3 d5 d7) | R°7 (R = Root Note) | B°7, (B D F Ab) |
|-|-|-| |-|-|-| 3 |-|r|-| 7 |i|-|-| 5 |-|-|p| R |-|m|-| |
5 |i|-|-| 3 |)|-|p| 7 |i|-|-| 5 |-|-|r| R |-|m|-| |-|-|-| |
3 |-|r|-| 7 |i|-|-| 5 |)|m|-| R |i|-|-| |-|-|-| |-|-|-| |
7 |i|-|-|-|-|-| 5 |-|-|m|-|-|-| 3 |-|-|-|r|-|-| R |-|-|-|-|-|p| |-|-|-|-|-|-| |-|-|-|-|-|-| |
Diatonic Chords
Only Dominant 7ths, Minor 7ths, Major 7ths, and Half-Diminished 7ths are diatonic to the major and natural minor scales.
| Harmonic Name |
I Maj7 | ii7 | iii7 | IV Maj7 | V7 | vi7 | viiø7 |
|---|---|---|---|---|---|---|---|
| C Major Name |
CMaj7 | Dm7 | Em7 | FMaj7 | G7 | Am7 | Bø7 |
| Harmonic Name |
i7 | iiø7 | III Maj7 | iv7 | v7 | VI Maj7 | VII7 |
|---|---|---|---|---|---|---|---|
| A Minor Name |
Am7 | Bø7 | CMaj7 | Dm7 | Em7 | FMaj7 | G7 |
Harmonic Minor uses those but additionally adds an Augmented 7th, a Minor/Major 7th, and a Fully Diminished 7th. Every chord is a unique variation.
| Harmonic Name |
i Maj7 | iiø7 | III+7 | iv7 | V7 | VI Maj7 | VII°7 |
|---|---|---|---|---|---|---|---|
| A Minor Name |
AmMaj7 | Bø7 | C+7 | Dm7 | E7 | FMaj7 | G#°7 |
The Fully Diminished 7th is also diatonic to the octatonic diminished scales (Whole-Half and Half-Whole).