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Chord BlocksThis Circle of Fifths groups the twelve keys into Four Chord Blocks.

Each Chord Block contains the Primary Triads: I, V, and IV. The Twelve-Bar Blues Chord Progression contains the Primary Triads.

When C, A, F# and Eb are the tonic, all twelve chords are used.

© 2005 Music Works Academy, Ltd.

C=I

D=IV

A=I

B/Cb=IV

E=V

F#/Gb=I

Ab=IV

Db/C#=V

Eb=I Circle of Fifths

1

3 2

4

Bb=V ..

. .G=VF=IV..

...

.. .

 

S A M P L E courtesy of  

pianofonics.com 

RHYTHM Blues, Technic and Improv 1