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12 Bar Blues and Variations
Written by Bryan Helmig   
Friday, 29 February 2008
 

The iconic 12 bar blues and how to spice it up.

Pop-up instructional video to the left.

Most of us know the common 12 bar blues. We know how it relies on a simple three chord I, IV, and V progression. It works wonderful and we love it but sometimes we would like some variety.  Here is a quick overview of a couple common but effective modifications. 

First let's cover the basics:

Here is a progression in G with no frills.

simple blues progression

That's as simple as they get. While you don't need it, the roman numeral chord labeling allows you to work in any key as explained in my Three Vital Musical Concepts lesson. Moving on.

The standard blues progression

This one is the bread and butter of 90% of blues songs. It's simple and effective also.

standard blues progression

The chord changes create extra movement without becoming too complicated. The turn around (ending the progression on the V chord or D in this key) is a staple of blues everywhere. Moving on.


Just paying the bills:

Jazz big band changes

Sometimes you want the blues to sound a little more sophisticated than usual. These changes create a lot of movement are really fun to play.

big band blues progression

These changes work best over a swing feel instead of a rock or shuffle approach.

Pick your favorite changes and combine

The blues is all about improvisation. You could try sitting on the I7 chord (or G7 in the key of G) for 8 measures until you get to the V and VI (or D7 and C7 in the key of G) to build some tension. You could combine the Jazz big band changes with blues-rock. Who knows, maybe you'll come up with the next popular style. The sky is the limit.

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Users' Comments (9)
Posted by cpac, on 07-05-2008 15:11,

1. question about the chords

i am just learning the guitar and the blues, and i read the G7, C7, D7, G7 chords in the progression, but the fingerings for the chords are different when i look them up on the internet. where do u get your chords from or what is the fingering for them?
 
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Posted by Mr. Kevin Holden, on 11-02-2008 12:34,

2. chords

Hi hope you can help, have been trying to find the chords you are playing but none of them look the same shape as the ones you are playing, how do I get them, not even in variations. 
Thanks kev
 
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Posted by Dave, on 11-15-2008 04:09,

3. ugghhh

Buy a chord book, whinging scabs
 
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Posted by dpgblues, on 01-03-2009 06:45,

4. chords

Download Advanced Fret Pro. It wil give you chords played in all ways barr and up the neck. Its a great tool
 
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Posted by Axeddicted, on 01-05-2009 19:52,

5. Huh

Where can we get it at? Im a beginer too and trying to soak up as much knowledge as possible!
 
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Posted by Dave, on 03-31-2009 23:55,

6. good god

use google: http://www.google.com/search? hl=en&safe=off&rlz=1B3GGGL_enUS225US225&num=100&ei=SfLSSbG8CpGusQOQpciDDA&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=Advanced+Fretpro&spell=1
 
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Posted by billybob(themusicone), on 01-26-2010 23:19,

7. smooth

Good Job. My question is on the last progression you have D-7 in the fourth bar but your roman numeral says iv7 so my question is do you want the d-7 or do you want a c-7?
 
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Posted by Mark Herrick, on 02-19-2010 08:13,

8. Jazz Big Band Changes - Error Above!

Jazz Big Band Changes - Error Above! 
The ending chord in line one indicated as a d minor 7, has the wrong roman numeral assigned to it. It is not a IV minor 7 chord. It is a v minor 7 chord in the key of G major. 
 
Check out my new music theory ... Solid Harmony™ at  
www.majorharmony.com This is a great site for learning the guitar. I will be pointing at you from my new site!
 
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Posted by Ratchet Jazz, on 11-03-2011 13:53,

9. ratchetjazz

To follow up on this, there are some interesting exercises over these changes at http://www.bluesimprov.com/ exercise/index.php I found them very helpful after working through this lesson. Thanks for publishing this.
 
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