Autumn Leaves in B

Joseph Kosma(1945)swingMedium Swing

Autumn Leaves in B

Autumn Leaves in B — the essential ii-V-I laboratory through G major and E minor. Use Dorian on Am7, Mixolydian on D7, and Harmonic Minor over B7b9 for authentic jazz color. Changes: Em7 – A7 – DMaj7 – GMaj7 – C#m7b5 – F#7 – Bm – F#7b9 – Bm7 – A#7 – Am7 – G#7.

Autumn Leaves in B

B major mixes barre and open elements. The B chord itself is a barre at fret 2, but E and A are comfortable open chords forming the IV and V. The open B string rings as the root, allowing creative drone-based arrangements. B is a intermediate-level key on guitar because the open B string rings as the root and the open E strings provide the 4th — useful for sus4 voicings and drone effects. This key mixes open and barre shapes, making it a good intermediate challenge that builds fretboard fluency.

Voice Leading

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

Scales for Improvisation

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

swing4/4 · 40 bars · Form: AAB

Chords: Em7, A7, DMaj7, GMaj7, C♯m7♭5, F♯7, Bm, F♯7♭9, Bm7, A♯7, Am7, G♯7.

Scales for Improvisation B dorian, B mixolydian, B aeolian, B minor pentatonic, B harmonic minor, B bebop minor, B bebop.

Diatonic chords: See all chords in the key of B