Someday in D

Louis Armstrong(1955)swing
Do Re MiC D E
A
A7♯5

Chord Diagrams — Someday in D (Guitar)

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Someday 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 C# (descending half step), C# to B (descending whole step), B to E (ascending perfect fourth), E to A (ascending perfect fourth), A to D (ascending perfect fourth), D to B (descending minor third), B to A (descending whole step), A to G (descending whole step). A half-step bass movement creates a strong leading-tone pull that demands resolution. The mix of stepwise and leap motion balances smoothness with harmonic drive. When the progression loops, the bass returns from G to D by perfect fourth.

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 · 32 bars · Form: A

Chords: D6, C♯7, B7, Em7, A7, D, Bm, A7♯5, Gm6.

Scales for Improvisation D bebop, D bebop major.

Diatonic chords: See all chords in the key of D