O Que Será

O Que Será 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 A (ascending unison), A to A (ascending unison), A to A (ascending unison), A to E (descending perfect fourth), E to E (ascending unison), E to E (ascending unison), E to F# (ascending whole step), F# to D (descending major third), D to D (ascending unison), D to D (ascending unison), D to D (ascending unison), D to F (ascending minor third), F to F (ascending unison), F to B (ascending tritone), B to E (ascending perfect fourth), E to F (ascending half step), F to F (ascending unison), F to C (descending perfect fourth), C to G# (descending major third), G# to E (descending major third), E to D (descending whole step), D to A (descending perfect fourth), A to B (ascending whole step), B to G (descending major third), G to G (ascending unison), G to G (ascending unison), G to G (ascending unison), G to A# (ascending minor third), A# to A# (ascending unison), A# to E (ascending tritone), E to A (ascending perfect fourth), A to A# (ascending half step), A# to A# (ascending unison), A# to F (descending perfect fourth), F to C# (descending major third), C# to A (descending major third), A to B (ascending whole step), B to E (ascending perfect fourth), E to B (descending perfect fourth), B to B (ascending unison), B to B (ascending unison), B to C# (ascending whole step), C# to C (descending half step), C to C (ascending unison), C to F# (ascending tritone), F# to B (ascending perfect fourth), B to B (ascending unison). 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 B to A by whole step.

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.