"The must-have chords in blues
The first chords to learn if you want to get a bluesy guitar sound are the ones below.
These give another color to the sound than the major and
minor chords and are known as dominant 7th chords."
https://www.guitar-chord.org/articles/blues.html
There is Major and minor blues and in between..
STEPS 1-4-5 IN THE TONAL CADENCE
AND SCALE STEPS FOR THE CHORDS....
See the most used progressions here..
E7 – A7 – E7 – B7 – A7 – E7
Blues in C= 1-4-5 = C7 F7 G7
|C7 | C7 | C7 | C7 |
|F7 | F7 | C7 | C7 |
G7 | F7 | C7 | C7 |
Move it
Move it
Move It
Blues in D - D7 - G7 - A7
D7 | D7 | D7 | D7 |
G7 | G7 | D7 | D7 |
A7 | G7 | D7 | A7 |
Quick-change variation
This variation adds a faster change to
the IV chord (G7) in bar 2
D7 | G7 | D7 | D7 |
G7 | G7 | D7 | D7 |
A7 | G7 | D7 | A7 |
A7
A7 5 Fret
A7
Am7
A minor blues:
A simple 12-bar blues approach with a
quick change (2nd bar) and a turnaround (12th bar):
Am | Dm | Am | Am |
Dm | Dm | Am | Am |
E7 | Dm | Am | E7 |
Am7 | E7 | Am7 | A7 |
Dm7 | Dm7 | Am7 | Am7
Bm7b5 / E7 | Dm7 | Am7 | Am7
Read more:
https://www.guitar-chord.org/articles/blues-minor-chords.html
Am7
Dm
Em7
Dm7
B7
Bm7
Bm7
CMaj7
CMaj7
C7 Move
Cm7
Cm7
DMaj7
D7
D7 10 Fret
D9
E7
E7 12 Fret
E9 5 Fret
Em7
Fm7
FMaj7
F7 Move
G7 Move
C7 Root 5th
F7 - Root 6th
E7 | E7 | E7 | E7 |
A7 | A7 | E7 | E7 |
B7 | A7 | E7 | E7 |