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Infant Eyes 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 F# to E (descending whole step), E to D (descending whole step), D to G# (ascending tritone), G# to F (descending minor third), F to E (descending half step), E to D (descending whole step), D to A (descending perfect fourth), A to A (ascending unison), A to D# (ascending tritone), D# to D (descending half step), D to D# (ascending half step), D# to A# (descending perfect fourth), A# to G (descending minor third), G to D (descending perfect fourth), D to C# (descending half step). 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 F# 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.