Mercy, Mercy, Mercy in G#

J. Zawinul(1966)blues
Do Re MiC D E
A
C♯7/G♯
C♯7/G♯
C♯7/G♯
C♯7/G♯

Chord Diagrams — Mercy, Mercy, Mercy in G# (Guitar)

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Mercy, Mercy, Mercy 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 G# to C# (ascending perfect fourth), C# to C# (ascending unison), C# to D# (ascending whole step), D# to G# (ascending perfect fourth), G# to A# (ascending whole step), A# to C (ascending whole step), C to D# (ascending minor third), D# to F (ascending whole step), F to F (ascending unison). The predominantly stepwise bass motion creates smooth, connected voice leading. When the progression loops, the bass returns from F to G# 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.

blues4/4 · 20 bars · Form: A

Chords: G♯7, C♯7, C♯7/G♯, D♯7, G♯, A♯m7, Cm7, D♯, Fm, Fm7.

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

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