Do Re MiC D E

C'est Si Bon

Betti Henri4/4medium-swing

Chord Diagrams — C'est Si Bon in G# (Guitar)

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C'est Si Bon in G#

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 A# to D# (ascending perfect fourth), D# to G# (ascending perfect fourth), G# to C# (ascending perfect fourth), C# to C (descending half step), C to F (ascending perfect fourth), F to G# (ascending minor third), G# to C (ascending major third), C to F (ascending perfect fourth), F to F# (ascending half step), F# to B (ascending perfect fourth), B to E (ascending perfect fourth), E to C# (descending minor third), C# to F (ascending major third), F to A# (ascending perfect fourth), A# to B (ascending half step), B to C (ascending half step), C to C# (ascending 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 C# to A# by minor third.

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.

medium-swing4/4 · 40 bars · Form: ABC

Chords: A♯m7, D♯7, G♯maj7, C♯7, Cm7, F7, G♯6, C7, F7♭9, F♯m7, B7, Emaj7, C♯m7, Fm7, A♯7, Bm7, Cm7♭5, C♯m6.

Scales for Improvisation G# bebop, G# bebop major.

Diatonic chords: See all chords in the key of G#