502 Blues in A

Jimmy Rowles(1958)blues

502 Blues 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 C# (ascending major third), C# to B (descending whole step), B to E (ascending perfect fourth), E to C (descending major third), C to F (ascending perfect fourth), F to A# (ascending perfect fourth), A# to C# (ascending minor third), C# to G# (descending perfect fourth), G# to F# (descending whole step), F# to B (ascending perfect fourth), B to E (ascending perfect fourth), E to E (ascending unison), E to E (ascending unison). 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 E to A by perfect fourth.

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.

blues3/4 · 20 bars · Form: AB

Chords: Am7, C♯Maj7, Bm7♭5, E7♯9, Cm7, F7♭9, A♯Maj7, C♯9add13, G♯m7, F♯m7♭5, B7♭9, EMaj7, E7, Em7.

Scales for Improvisation A bebop minor, A bebop.

Diatonic chords: See all chords in the key of A