Harlem Nocturne in G

Earle Hagen / Dick Rogers(1939)swing
Do Re MiC D E
A
B
C

Chord Diagrams — Harlem Nocturne in G (Guitar)

Display
FingerNoteDegree

Harlem Nocturne in G

Key of G

G major is the singer-songwriter's key. The open G, B, and D strings spell out the full G major triad with zero fretting. Add the open high E for a Gadd6 shimmer. Nearly every diatonic chord (Em, Am, C, D) has a comfortable open voicing. G is a beginner-level key on guitar because the open G, B, and D strings form a complete G major triad without fretting a single note, and the open low E adds a rich 6th color. Beginners will find this key approachable since most chords use open voicings with minimal stretching.

Voice Leading

The bass line moves through G to G (ascending unison), G to C (ascending perfect fourth), C to C (ascending unison), C to C (ascending unison), C to D# (ascending minor third), D# to A (ascending tritone), A to D (ascending perfect fourth), D to G (ascending perfect fourth), G to F (descending whole step), F to A# (ascending perfect fourth), A# to F (descending perfect fourth), F to D# (descending whole step), D# to A# (descending perfect fourth), A# to D# (ascending perfect fourth), D# to C# (descending whole step), C# to B (descending whole step), B to A (descending whole step), A to G (descending whole step), G to C (ascending perfect fourth), C to F (ascending perfect fourth). 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 F to G by whole step.

Scales for Improvisation

G 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, G Mixolydian adds the flat seventh for an authentic blues-rock edge.

swing4/4 · 29 bars · Form: ABC

Chords: GmMaj7, Gm7, Cm, Cm7, CmMaj7, D♯6, A7, D7, Gm6, F7, A♯7, Fm7, D♯7, A♯m7, D♯9, C♯9, B9, A9, G9, C9, F9.

Scales for Improvisation G bebop minor, G bebop.

Diatonic chords: See all chords in the key of G