Do Re MiC D E

I Guess I'll Have To Change My Plan

Schwartz Arthur4/4ballad

Chord Diagrams — I Guess I'll Have To Change My Plan in D (Guitar)

Display
FingerNoteDegree
Starting fret
Open123456789101112

Explore More

I Guess I'll Have To Change My Plan 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 B (ascending whole step), B to E (ascending perfect fourth), E to F# (ascending whole step), F# to E (descending whole step), E to A (ascending perfect fourth), A to D (ascending perfect fourth), D to G (ascending perfect fourth), G to G (ascending unison), G to G (ascending unison), G to F (descending whole step), F to C (descending perfect fourth), C to B (descending half step), B to E (ascending perfect fourth), E to D (descending whole 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 D to D by unison.

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.

ballad4/4 · 20 bars · Form: ABC

Chords: Dmaj7, A7, Bm7, Em7, F♯m7, E13, Am7, D7, Gmaj7, G6, Gm6, Fdim7, C7, B7, E7, D6.

Scales for Improvisation D bebop, D bebop major.

Diatonic chords: See all chords in the key of D