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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: Gm – F#dim7 – Fm6 – C7/B – D#maj7 – G#maj7#11 – Am7b5 – D7b9 – F#7 – Edim7 – Fm7 – A#7 – Em7 – A7b9.
Key of G
G major is the singer-songwriter's key. The open G, B, and D strings spell out the full G major triad with zero fretting. Add the open high E for a Gadd6 shimmer. Nearly every diatonic chord (Em, Am, C, D) has a comfortable open voicing. G is a beginner-level key on guitar because the open G, B, and D strings form a complete G major triad without fretting a single note, and the open low E adds a rich 6th color. Beginners will find this key approachable since most chords use open voicings with minimal stretching.
Voice Leading
The bass line moves through G to F# (descending half step), F# to F (descending half step), F to C (descending perfect fourth), C to D# (ascending minor third), D# to G# (ascending perfect fourth), G# to A (ascending half step), A to D (ascending perfect fourth), D to F# (ascending major third), F# to E (descending whole step), E to F (ascending half step), F to A# (ascending perfect fourth), A# to E (ascending tritone), E 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.