Explore More
Serpent's Tooth 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 D# (ascending half step), D# to E (ascending half step), E to F (ascending half step), F to F# (ascending half step), F# to F# (ascending unison), F# to G (ascending half step), G to C (ascending perfect fourth), C to G# (descending major third), G# to C (ascending major third), C to B (descending half step), B to A (descending whole step), A to D (ascending perfect fourth), D to D (ascending unison), D to E (ascending whole step), E to C (descending major third). A half-step bass movement creates a strong leading-tone pull that demands resolution. The predominantly stepwise bass motion creates smooth, connected voice leading. When the progression loops, the bass returns from C 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.