Do Re MiC D E

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Monk Thelonious4/4medium-swing

Chord Diagrams — Work in A (Guitar)

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Work 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 A to D (ascending perfect fourth), D to C# (descending half step), C# to C (descending half step), C to B (descending half step), B to A# (descending half step), A# to A# (ascending unison), A# to D# (ascending perfect fourth), D# to G# (ascending perfect fourth), G# to G# (ascending unison), G# to F (descending minor third), F to E (descending half step), E to D# (descending half step). A half-step bass movement creates a strong leading-tone pull that demands resolution. The predominantly stepwise bass motion creates smooth, connected voice leading. When the progression loops, the bass returns from D# to A by tritone.

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.

medium-swing4/4 · 33 bars · Form: ABC

Chords: A7, D7, C♯7, C7, B7, A♯7, A♯7sus4, D♯7♭5, G♯7♭5, G♯m7♭5, F7, E7♭9♯5, D♯.

Scales for Improvisation A bebop, A bebop major.

Diatonic chords: See all chords in the key of A