The 12 Bar Blues in the key of D contains the chords D7 (I chord), G7 (IV chord) and A7 (V) chord. Below is the 12 Bar Blues starting on D7.

12 Bar Blues D

12 Bar Blues in D (Jazz Variation)

The Jazz variation of the 12 Bar Blues in D adds some extra chords. The 12 Bar Blues structure remains the same, but certain chords are substituted. For example, the D7 chord in the fourth bar is substituted with a Am7 moving to an D7 chord.

12 Bar Blues D Jazz Version

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