The 12-bar form and beyond · I7 · IV7 · V7 (across 12 bars)
Why the blues treats I, IV, and V as dominant sevenths — and how quick-change, slow-change, and Bird blues differ.
Editorial content for this topic is in progress. The interactive player and pattern data are live below.
Hear the pattern
Interactive player — try the progression in any of the 18 keys, switch modes, and adjust tempo to find the feel you want.
C
D
E
F
G
A
B
C
D
E
F
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A
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I7›C7
100 BPM
FormulaI7 · IV7 · V7 (across 12 bars)
FunctionSee "About" below for harmonic role.
Soundits classic, late-night blues atmosphere
Common in"Sweet Home Chicago" · "Hound Dog" — Elvis Presley · "Pride and Joy" — Stevie Ray Vaughan
Famous"Sweet Home Chicago" · "Hound Dog" — Elvis Presley · "Pride and Joy" — Stevie Ray Vaughan
The deep indigo palette on this page is inspired by music-color synesthesia — blues progressions maps to deep indigo, reflecting its classic, late-night blues atmosphere.
About Blues Progressions
Why the blues treats I, IV, and V as dominant sevenths — and how quick-change, slow-change, and Bird blues differ.
Variations
Variation
Another way the pattern shows up in real music.
C
D
E
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G
A
B
C
D
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F
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A
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I7›C7
80 BPM
Variation
Another way the pattern shows up in real music.
C
D
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F
G
A
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C
D
E
F
G
A
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Imaj7›Cmaj7
110 BPM
Variation
Another way the pattern shows up in real music.
C
D
E
F
G
A
B
C
D
E
F
G
A
B
I7›C7
90 BPM
Famous songs & pieces
"Sweet Home Chicago"
"Hound Dog" — Elvis Presley
"Pride and Joy" — Stevie Ray Vaughan
Frequently asked questions
What is a blues progressions progression?
Why the blues treats I, IV, and V as dominant sevenths — and how quick-change, slow-change, and Bird blues differ.
How do I use this on the piano?
Start with the player above in C. Once the pattern is in your ear, transpose to the keys you actually play in. The Roman numerals stay the same; only the chord names change.