Desafinado in A

Desafinado in A

Desafinado in A — Antonio Carlos Jobim's bossa nova classic. Explore Bebop Major and Lydian scales over these sophisticated changes. Chords: AMaj7 – B7 – Bm7 – E7 – C#m7 – F#7 – CMaj7 – F7 – A#Maj7.

Desafinado in 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 B (ascending whole step), B to B (ascending unison), B to E (ascending perfect fourth), E to C# (descending minor third), C# to F# (ascending perfect fourth), F# to C (ascending tritone), C to F (ascending perfect fourth), F to A# (ascending perfect fourth). 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 A by half 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.