Blues Chord Progressions: The 12-Bar Blues + 5 Variations for Beats

The blues is the oldest trick in the book, and it still works. Three chords, a loose groove and that slightly "wrong" sound that feels right. You hear blues harmony in old soul samples, in boom bap, in rock and in plenty of modern hip hop that flips a dusty guitar or piano loop.

Below you'll learn the 12-bar blues bar by bar, plus 5 variations you can put straight into your DAW. Everything is in C (so you can see it on the keyboard), with Roman numerals so you can move it to any key, the notes of every chord and tips to make it work in a beat.

What makes a chord progression sound like the blues?

• Only three chords. The classic blues uses the I, IV and V chords. In C that's C, F and G.
• Every chord is a dominant 7th. In normal pop harmony only the V chord gets a 7th. In the blues the I and IV get one too: C7, F7 and G7. That flat 7th (Bb on C7, Eb on F7) is a big part of the sound.
• Blue notes in the melody. Blues melodies bend the 3rd, 5th and 7th of the scale down. In C those notes are Eb, Gb and Bb. Playing an Eb melody over a C7 chord sounds like a clash on paper, but that tension is exactly the point.
• A shuffle feel. A lot of blues swings: the second eighth note of every beat lands late. In a DAW you get close with swing or by nudging notes off the grid.

How to read the numerals: uppercase (I, IV, V) are major chords, lowercase (ii) are minor. A "7" means a dominant 7th chord. In the minor blues below, lowercase "i" and "iv" are minor 7th chords. New to this? Start with which chords go together.

The 12-bar blues, bar by bar

The standard 12-bar blues is three lines of four bars. This overview of 12-bar variations lays it out the same way:

• Bars 1 to 4: I, I, I, I (C7, C7, C7, C7)
• Bars 5 to 8: IV, IV, I, I (F7, F7, C7, C7)
• Bars 9 to 12: V, IV, I, V (G7, F7, C7, G7)

The G7 in bar 12 is the turnaround: it pulls you back to C7 at the top, so the 12 bars can loop forever. Count it out loud while you play and you'll feel where the changes land after one or two rounds.

5 blues chord progressions to try

1. The quick change: I, IV, I, I in the first line (C7, F7, C7, C7)

Same 12 bars, one change: bar 2 jumps to the IV chord for a bar and then comes back. The first line becomes C7, F7, C7, C7 and the rest stays the same. It keeps the opening from sitting still for four bars, which helps a lot when the progression loops under a rapper or singer.

2. The jazzy turnaround: I, VI7, ii, V in the last two bars (C7, A7, Dm7, G7)

Swap the last two bars (C7, G7) for four quick chords, two per bar: C7, A7 in bar 11 and Dm7, G7 in bar 12. The A7 has a C# that isn't in the key of C, and it pulls hard into Dm7. Then Dm7 to G7 to C7 is a two-five-one. It's a small change that makes the loop sound more like soul or jazz, great for lo-fi and boom bap.

3. The minor blues: i, iv and a V7 (Cm7, Fm7, Ab7, G7)

Same idea, darker colors. A common layout:

• Bars 1 to 4: Cm7, Cm7, Cm7, Cm7
• Bars 5 to 8: Fm7, Fm7, Cm7, Cm7
• Bars 9 to 12: Ab7, G7, Cm7, G7

The Ab7 in bar 9 slides down a half step into G7, and that slide gives the last line its moody pull. If your beats are mostly trap or drill, this is the blues version that fits right in.

4. The 8-bar blues: a shorter loop

Not every song needs 12 bars. There are several 8-bar blues forms. The simplest one drops the first four bars of the 12-bar form, so you get IV, IV, I, I, V, IV, I, V (F7, F7, C7, C7, G7, F7, C7, G7). Eight bars fit neatly into a hip hop arrangement, where most sections are built in 4 or 8 bars.

5. A beat-friendly 4-bar minor blues loop (Cm7, Fm7, Ab7, G7)

Want the blues feeling without a full 12-bar cycle? Take the key chords of the minor blues and give each one a bar: Cm7, Fm7, Ab7, G7. The G7 at the end pulls you back to Cm7 every time, just like the turnaround in the full form. It loops easily for a verse, and you can bring back the full 12-bar version for an intro, a bridge or an outro.

Cheat sheet: the notes in every chord

• C7: C, E, G, Bb
• F7: F, A, C, Eb
• G7: G, B, D, F
• A7: A, C#, E, G
• Dm7: D, F, A, C
• Cm7: C, Eb, G, Bb
• Fm7: F, Ab, C, Eb
• Ab7: Ab, C, Eb, Gb

Want to play in another key? Keep the numerals and fill in the chords of your key. A lot of guitar blues is in A or E, for example. In A the 12-bar blues uses A7, D7 and E7. Look up the chords of any key on our chords by key page.

How to make blues chords work in a beat

1. Pick a sound with grit. A slightly dirty electric piano, an organ, a clean electric guitar or a dusty sampled piano. Blues chords sound stiff on a bright, perfect synth.
2. Add swing. Push the off-beats a little late on your hats and keys. In FL Studio you can do this with the Swing knob in the Channel rack, see how to add swing in FL Studio.
3. Let the bass play the roots. Your 808 or bass follows C, F and G. That keeps the low end clean even when the chords have four notes.
4. Use the 7th, skip the rest. If the chords crowd the vocal, play only the 3rd and 7th of each chord (E and Bb on C7). Those two notes carry the blues color.
5. Save the full form for key moments. Loop four bars under the verse and play the full 12 bars in the intro, a bridge or the outro.
6. Sample? Check the key first. Flipping an old blues or soul loop? Drop it into Beat Lab to estimate the BPM and key before you add chords or an 808. You can also shift the pitch there without changing the tempo.

Get a starting point as free MIDI

Our free chord progression generator makes four-chord loops, not full 12-bar forms. For the minor loop (progression 5), pick the Dark or Sad mood in minor, set your key and tempo, listen in your browser and download the MIDI with chords plus a bass line on the roots. Then swap the chords for the blues chords above in your piano roll. For the full 12-bar form, program one bar per chord and copy it along the pattern. The MIDI is free to use in your own releases.

Want to go further?

Blues sits right next to gospel and jazz. For passing chords and that church feeling, read our gospel chord progressions. Rather start writing now? Browse the beats by NameOnTheBeat and find one that fits your voice.

FAQ

What are the three chords in the blues?

The I, IV and V chords of the key, usually played as dominant 7th chords. In C that's C7, F7 and G7. In A it's A7, D7 and E7.

What is the most common blues chord progression?

The 12-bar blues: four bars of I, two bars of IV, two bars of I, then V, IV, I and V. The quick change version, with IV in bar 2, is just as common.

Why does the blues use 7th chords on every chord?

The dominant 7th adds the flat 7th of each chord (Bb on C7). That note also sits in the blues scale, so the chords and the bluesy melody notes sound like they belong together.

Can I use blues chords in trap or drill?

Yes. Trap and drill usually sit in minor, so the minor blues (progression 3) or the 4-bar minor loop (progression 5) fits best. Keep the 808 on the roots and let the chords breathe.

Can I use these progressions in a release?

Yes. Chord progressions are basic building blocks of music. Just don't copy someone else's actual recording or melody.

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