music theory mastery - part four · 7’s and the caged system • 7th chords work the same way...
TRANSCRIPT
7 Chords
• Most common chords in Jazz • 1, 3, 5 and 7 • 4 main types: 1. Maj7 2. Min7 3. Dom7 4. m7b5
How they are written
Name
Maj7 CMaj7 CMa7 C C
Min7 Cmin7 Cm7 Cmi7 C
Dom7 C7 C
m7b5 Cm7b5 Cm7 C C
7
-7
7
(b5) 7
M7b5 can also be written as it’s Relative Major, with a minor and an inversion with that chord in the bass
The Maj7
• 1, 3, 5, 7 • All notes taken directly from the major scale of the
chord
The Min7
• 1, b3, 5, b7 • Flattening the third makes the chord sound sad
and the 7 is flattened because the 7th is flattened in the natural minor (Aeolian) scale
The Dom7
• 1, 3, 5, b7 • All notes taken directly from the dominant
(Mixolydian) scale of the chord
The min7b5
• 1, b3, b5, b7 • All notes taken directly from the 7 degree
(Locrian) scale of the chord
7 Chord FormulasName 1st Note 2nd Note 3rd Note 4th Note
Maj7 1 3 5 7
Min7 1 b3 5 b7
Dom7 1 3 5 b7
m7b5 1 b3 b5 b7
Chord Dictionary
NOTE: All root notes are lowest note in the chord unless stated otherwise
Part 4 - 7th Chords
Open Maj7 Chords
A Major 7
B Major 7
**Root note not present
C Major 7
D Major 7
E Major 7
F Major 7
G Major 7
Open Min7 Chords
A Minor 7
B Minor 7
C Minor 7
D Minor 7
E Minor 7
F Minor 7
**Root note on: String 1, Fret 1
G Minor 7
Open 7 ChordsA7
B7
C7
D7
E7
F7
G7
1st Form Barre 7 Chords
Major 7 “Barre” Chord
Minor 7 Barre Chord
7 Barre Chord
2nd Form Barre 7 ChordsMajor 7 “Barre”
Chord
Minor 7 Barre Chord
7 Barre Chord
m7b5 ChordC Minor 7 Flat 5
Note: Move a m7b5 Chord around by 3 frets and you’ll have the same diminished chord
Diatonic 7 Chords in a Key
I. ii. iii. IV. V. vi. vii°
• First, lets re-cap the diatonic chords in a key
I7. ii7. iii7. IV7. V7. vi7. vii°7
• Now lets add 7’s to them all
• But wait! There’s more!
IM7. iim7. iiim7. IVM7. V7. vim7. vii°7
• The 5th chord, otherwise known as the Dominant, is actually a Dominant 7 chord, not a Major 7. So it
looks a little more like this
• This chord now has a 7th in it (not just 1, b3, b5 as in the diminished chord). So it’s called a m7b5
No ‘M' Circle is Slashed
The Number System
I. ii. iii. IV. V. vi. vii°
Note: Large letters are Major, whereas small letters are Minor
7’s and The CAGED System
• 7th chords work the same way with the CAGED system as regular chords
• Simply apply the open 7th shape of the current chord shape instead of the regular major shape
• Sometimes you may want to play different strings of that chord
Chord Dictionary
NOTE: All root notes are lowest note in the chord unless stated otherwise
Part 5 - 7th CAGED Shapes
Maj7 CAGED Shapes
C-Shape
A-Shape
G-Shape
E-Shape
D-Shape
Min7 CAGED Shapes
C-Shape
A-Shape
G-Shape
**Root Note on: 3rd string
E-Shape
D-Shape
‘7’ CAGED ShapesC-Shape
A-Shape
G-Shape
E-Shape
D-Shape