Autumn Leaves in A#
Autumn Leaves in A#
Autumn Leaves in A# — 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: D#m7 – G#7 – C#Maj7 – F#Maj7 – Cm7b5 – F7 – A#m – F7b9 – A#m7 – A7 – G#m7 – G7.
Autumn Leaves in A#
A# (Bb) major requires barre chords rooted at fret 1 on the A string or fret 6 on the E string. Despite the barre demands, it is a common key in funk, New Orleans R&B, and brass band music. The open D string can ring as the major third for added color. A# is a intermediate-level key on guitar because the open D string is the major 3rd of Bb, adding a bright color if allowed to ring. Expect to rely on barre chords throughout, which builds hand strength and unlocks the entire fretboard.
Voice Leading
The bass line moves through D# to G# (ascending perfect fourth), G# to C# (ascending perfect fourth), C# to F# (ascending perfect fourth), F# to C (ascending tritone), C to F (ascending perfect fourth), F to A# (ascending perfect fourth), A# to F (descending perfect fourth), F to A# (ascending perfect fourth), A# to A (descending half step), A to G# (descending half step), G# 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 D# by major third.
Scales for Improvisation
A# 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, A# Mixolydian adds the flat seventh for an authentic blues-rock edge.