Do Re MiC D E

Roda-Viva

Buarque Chico4/4bossa-nova

Chord Diagrams — Roda-Viva in A (Guitar)

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Roda-Viva 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 D to G (ascending perfect fourth), G to C (ascending perfect fourth), C to C (ascending unison), C to B (descending half step), B to E (ascending perfect fourth), E to F (ascending half step), F to A (ascending major third), A to F (descending major third), F to D (descending minor third), D to A (descending perfect fourth), A to G (descending whole step), G to C (ascending perfect fourth), C to F (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 F to D 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.

bossa-nova4/4 · 77 bars · Form: AB

Chords: Dm9, G7, Cmaj7, C69, B7, E7, F6, Am7, F7, Dm7, Am7/A♭, Gm7, C7, Fmaj7.

Scales for Improvisation A bebop minor, A bebop.

Diatonic chords: See all chords in the key of A