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How Insensitive in G#
How Insensitive in G#: Jobim's bossa nova elegy descends chromatically through Melodic Minor and Harmonic Minor territory. Phrygian-flavored dominant chords give the harmony its Brazilian melancholy — keep lines close to the melody. Chords: G#m – Gdim7 – F#m6 – C#7/B – Emaj7 – Amaj7#11 – A#m7b5 – D#7b9 – G7 – Fdim7 – F#m7 – B7 – Fm7 – A#7b9.
Key of G#
G# major (or Ab) lives at fret 4 on the low E string. All chords require barre technique, making it less common in guitar-centric songwriting but standard in piano-driven pop. Guitarists often use a capo to access friendlier shapes. G# is a intermediate-advanced-level key on guitar because the open G string is a half step below the root, creating dissonance — avoid letting it ring. Expect to rely on barre chords throughout, which builds hand strength and unlocks the entire fretboard.
Voice Leading
The bass line moves through G# to G (descending half step), G to F# (descending half step), F# to C# (descending perfect fourth), C# to E (ascending minor third), E to A (ascending perfect fourth), A to A# (ascending half step), A# to D# (ascending perfect fourth), D# to G (ascending major third), G to F (descending whole step), F to F# (ascending half step), F# to B (ascending perfect fourth), B to F (ascending tritone), 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 whole step.
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.