Four in Sol

Four in Sol

Four in G — Miles Davis's crisp, up-tempo composition built on economical ii-V-I statements. Bebop Major over the tonic, Dorian on the iim7, Mixolydian on the dominant — every measure counts. Changes: GMaj7 – Am7 – D7 – C7 – Bm7 – E7 – Cm7 – F7 – A#Maj7.

Four in Sol

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 A (ascending whole step), A to D (ascending perfect fourth), D to C (descending whole step), C to B (descending half step), B to E (ascending perfect fourth), E to C (descending major third), C to F (ascending perfect fourth), F to A# (ascending perfect fourth). A half-step bass movement creates a strong leading-tone pull that demands resolution. 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 A# to G by minor third.

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.