Ace in the Hole in A

Cole Porter(1941)swing
Do Re MiC D E
A
A/C♯
C♯m7♭5/G
Bm7♭5/F

Chord Diagrams — Ace in the Hole in A (Guitar)

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Ace in the Hole in A

Key of A

A major is a rock and blues cornerstone. The open A string delivers a strong root, while both E strings ring as the fifth. Classic A-D-E progressions practically play themselves with open cowboy chords. The open high E is the fifth, reinforcing power. A is a beginner-level key on guitar because the open A string is the root and the open E strings provide the fifth above and below, creating a massive low-end anchor. Beginners will find this key approachable since most chords use open voicings with minimal stretching.

Voice Leading

The bass line moves through F# to G# (ascending whole step), G# to C# (ascending perfect fourth), C# to F# (ascending perfect fourth), F# to F# (ascending unison), F# to B (ascending perfect fourth), B to E (ascending perfect fourth), E to E (ascending unison), E to A (ascending perfect fourth), A to A# (ascending half step), A# to G# (descending whole step), G# to D# (descending perfect fourth), D# to D (descending half step), D to A (descending perfect fourth), A to C# (ascending major third), C# to B (descending whole step), B to B (ascending unison), B to E (ascending perfect fourth), 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 F# by minor 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. Over dominant seventh chords, A Mixolydian adds the flat seventh for an authentic blues-rock edge.

swing2/2 · 32 bars · Form: A

Chords: F♯m, G♯7, C♯7, F♯7, F♯7♭9, B7, E7, E7♭9, A7, A♯dim, G♯m7♭5, D♯m7♭5, Ddim, A/C♯, C♯m7♭5/G, Bm7, Bm7♭5/F, Esus4, A.

Scales for Improvisation A bebop, A bebop major.

Diatonic chords: See all chords in the key of A