Western Pop
12-Bar Blues (I7–I7–I7–I7–IV7–IV7–I7–I7–V7–IV7–I7–V7) Chord Progression
Complete 12-bar blues form. An essential progression foundational to rock and jazz.
- blues
- rock
- traditional
Roman numerals
- I7
- I7
- I7
- I7
- IV7
- IV7
- I7
- I7
- V7
- IV7
- I7
- V7
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 – C7 – C7 – F7 – F7 – C7 – C7 – G7 – F7 – C7 – G7
Key of G
G7 – G7 – G7 – G7 – C7 – C7 – G7 – G7 – D7 – C7 – G7 – D7
Key of D
D7 – D7 – D7 – D7 – G7 – G7 – D7 – D7 – A7 – G7 – D7 – A7