Chattanooga Choo-Choo in D

Harry Warren()swing
Do Re MiC D E
A
B
C
A7♯5
D7/C
G/B

Chord Diagrams — Chattanooga Choo-Choo in D (Guitar)

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Chattanooga Choo-Choo in D

Key of D

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 A (descending perfect fourth), A to A (ascending unison), A to A (ascending unison), A to D (ascending perfect fourth), D to G (ascending perfect fourth), G to G (ascending unison), G to C (ascending perfect fourth), C to C# (ascending half step), C# to E (ascending minor third), E to A (ascending perfect fourth), A to D# (ascending tritone), D# to D (descending half step), D to G (ascending perfect fourth), G to A# (ascending minor third), A# to D (ascending major third), D to B (descending minor third). A half-step bass movement creates a strong leading-tone pull that demands resolution. 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 B to D by minor third.

Scales for Improvisation

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.

swing2/2 · 26 bars · Form: ABC

Chords: D6, A7, A9, A7♯5, D7, G, G7, C, C♯dim, E7, A7♭9, D♯7, D7/C, G/B, A♯6, D, Bm.

Scales for Improvisation D bebop, D bebop major.

Diatonic chords: See all chords in the key of D