Mood Indigo in F

Duke Ellington / Barney Bigard / Irving Mills(1930)swing

Mood Indigo in F

Key of F

F major is the gateway to barre chords. While F itself requires a full barre at fret 1, the remaining diatonic chords (C, Dm, Am, G, Bb) mix open and barre shapes. The open high E acts as Fmaj7's seventh, adding unexpected richness. F is a intermediate-level key on guitar because the open high E string is the major seventh of F, creating a lush Fmaj7 resonance even in basic shapes, but the F barre chord itself is the first big hurdle for beginners. This key mixes open and barre shapes, making it a good intermediate challenge that builds fretboard fluency.

Voice Leading

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

Scales for Improvisation

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

swing4/4 · 32 bars · Form: A

Chords: F, G9, Cm, Caug, C♯7, C7, F9, A♯6, D♯9, Gm7, G7♭9, D♯7.

Scales for Improvisation F bebop, F bebop major.

Diatonic chords: See all chords in the key of F