Blues
Delta Blues Progression (I7–I7–IV7–I7) Chord Progression
Primitive blues from the Mississippi Delta region.
- delta
- primitive
- roots
Roman numerals
- I7
- I7
- IV7
- I7
Roman numerals give each chord’s position relative to the key’s tonic, so the progression sounds the same in any key.
Chords by key
Key of C
C7 – C7 – F7 – C7
Key of G
G7 – G7 – C7 – G7
Key of D
D7 – D7 – G7 – D7