Re 12 Bar Blues
I – I – I – I – IV – IV – I – I – V – IV – I – V progression in Re major
Re 12 Bar Blues — I – I – I – I – IV – IV – I – I – V – IV – I – V
The D 12-bar blues (D – D – D – D – G – G – D – D – A – G – D – A) is the bedrock of blues, rock, and jazz — twelve bars, three chords, infinite expression. Combine the Minor Blues scale with Major Pentatonic for the classic note-bending vocabulary that defines the genre. Mixolydian fills in the gaps between pentatonic positions with diatonic color. With dominant seventh voicings (DMaj7 – DMaj7 – DMaj7 – DMaj7 – GMaj7 – GMaj7 – DMaj7 – DMaj7 – A7 – GMaj7 – DMaj7 – A7), the raw blues character comes fully alive.
Playing in Re major
D major is one of guitar's most resonant keys. The open D string acts as a droning root, and the open A string provides the fifth. This gives D-based strumming a wide, ringing quality that flatpicks and fingerpicks love. D is a beginner-level key on guitar because the open D and A strings provide a powerful bass foundation, and the open high E is the 2nd scale degree adding brightness. Beginners will find this key approachable since most chords use open voicings with minimal stretching.
Voice Leading
The bass line moves through D to D (ascending unison), D to D (ascending unison), D to D (ascending unison), D to G (ascending perfect fourth), G to G (ascending unison), G to D (descending perfect fourth), D to D (ascending unison), D to A (descending perfect fourth), A to G (descending whole step), G to D (descending perfect fourth), D to A (descending perfect fourth). The predominantly stepwise bass motion creates smooth, connected voice leading. When the progression loops, the bass returns from A to D by perfect fourth.
Capo Transposition
To play in D using familiar open chords: capo 2 with open C shapes; capo 5 with open A shapes; capo 7 with open G shapes. Choose the capo position that gives you the voicings you prefer — lower capo positions produce a fuller sound, while higher positions create a brighter, mandolin-like timbre.
Scales for Soloing
D major pentatonic works because every note is either a chord tone or a safe passing tone — there are no avoid notes. For soloing, this means you can play freely without clashing. Over dominant seventh chords, D Mixolydian adds the flat seventh for an authentic blues-rock edge.
Strumming Pattern
Use a shuffle pattern: D-u-D-u with swung eighth notes at 80-120 BPM. The triplet feel is essential — think of each beat divided into three, skipping the middle note. Add palm muting on the bass strings for a tighter groove.