Swing 42 in D

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Swing 42 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 B (descending minor third), B to E (ascending perfect fourth), E to A (ascending perfect fourth), A to A (ascending unison), A to B (ascending whole step), B to D# (ascending major third), D# to C# (descending whole step), C# to F# (ascending perfect fourth), F# to D# (descending minor third), D# to G# (ascending perfect fourth), G# to F# (descending whole step), F# to E (descending whole step). 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 E to D by whole step.

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.

swing4/4 · 26 bars · Form: AB

Chords: D, Bm7, Em7, A7, Am/C, B7, D♯dim, C♯7, F♯6, D♯m7, G♯m7, F♯7, E7.

Scales for Improvisation D bebop, D bebop major.

Diatonic chords: See all chords in the key of D