I–I–I–I–IV–IV–I–I–V–IV–I–V in F Major

Pattern: I – I – I – I – IV – IV – I – I – V – IV – I – V   Chords: F – F – F – F – B♭ – B♭ – F – F – C – B♭ – F – C

Chord Breakdown

NumeralChordTypeFunction
I F (details) major Tonic
I F (details) major Tonic
I F (details) major Tonic
I F (details) major Tonic
IV B♭ (details) major Subdominant
IV B♭ (details) major Subdominant
I F (details) major Tonic
I F (details) major Tonic
V C (details) major Dominant
IV B♭ (details) major Subdominant
I F (details) major Tonic
V C (details) major Dominant

Harmonic Analysis

This progression moves through F (Tonic) → F (Tonic) → F (Tonic) → F (Tonic) → B♭ (Subdominant) → B♭ (Subdominant) → F (Tonic) → F (Tonic) → C (Dominant) → B♭ (Subdominant) → F (Tonic) → C (Dominant).

The 12-bar blues is the most iconic chord progression in American music. This 12-measure form built on the I, IV, and V chords has been the foundation of blues, rock and roll, and jazz for over a century.

Song Examples

Chord Details

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