Do Re MiC D E

Twelfth Street Rag

Euday L. Bowman4/4swing

Chord Diagrams — Twelfth Street Rag in A (Guitar)

Display
FingerNoteDegree
Starting fret
Open123456789101112
E7
5frEADGBEx3241x
EADGBE21
7frEADGBE111134
9frEADGBE111xx2
A
5frEADGBE111342
EADGBEx234
2frEADGBE111x4
7frEADGBEx1243
B7
4frEADGBE111xx2
EADGBEx2134
EADGBE111134
7frEADGBE111132
A/D♭
2frEADGBE111x4
EADGBEx234
5frEADGBE111342
7frEADGBEx1243
D/C
2frEADGBE111432
EADGBExx132
5frEADGBE111234
10frEADGBE111342
F7
3frEADGBE11x324
EADGBE111132
8frEADGBE111134
10frEADGBE111xx2
A/B♭
2frEADGBE111x4
EADGBEx234
5frEADGBE111342
7frEADGBEx1243

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Twelfth Street Rag in A

Key of A

A major is a rock and blues cornerstone. The open A string delivers a strong root, while both E strings ring as the fifth. Classic A-D-E progressions practically play themselves with open cowboy chords. The open high E is the fifth, reinforcing power. A is a beginner-level key on guitar because the open A string is the root and the open E strings provide the fifth above and below, creating a massive low-end anchor. Beginners will find this key approachable since most chords use open voicings with minimal stretching.

Voice Leading

The bass line moves through E to A (ascending perfect fourth), A to B (ascending whole step), B to A (descending whole step), A to D (ascending perfect fourth), D to F (ascending minor third), F to A (ascending major third). The root motion by larger intervals (fourths and fifths) gives each chord change a strong, decisive character. When the progression loops, the bass returns from A to E by perfect fourth.

Scales for Improvisation

A 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, A Mixolydian adds the flat seventh for an authentic blues-rock edge.

swing4/4 · 36 bars · Form: A

Chords: E7, A, B7, A/D♭, D/C, F7, A/B♭.

Scales for Improvisation A bebop, A bebop major.

Diatonic chords: See all chords in the key of A