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In Her Family in A#
Key of 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 tritone), G# to A# (ascending whole step), A# to A (descending half step), A to G (descending whole step), G to A# (ascending minor third), A# to C (ascending whole step), C to C (ascending unison), C to D# (ascending minor third), D# to A# (descending perfect fourth), A# to E (ascending tritone), E to A# (ascending tritone), A# to E (ascending tritone), E to E (ascending unison), E to F# (ascending whole step), F# to G# (ascending whole step), G# to E (descending major third), E to F# (ascending whole step), F# to D (descending major third), D to A# (descending major third), A# to C (ascending whole step), C to A (descending minor third), A to E (descending perfect fourth), E to G# (ascending major third), G# to D# (descending perfect fourth), D# to G (ascending major third), G to A# (ascending minor 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 A# 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. Use the Lydian mode (raised 4th) over the IV chord for a dreamy, floating quality that lifts the harmony.