Cambalache in A

Cambalache in A

Enrique Santos Discépolo compuso 'Cambalache' en 1934, el año que Argentina caía en el abismo político. La letra es el diagnóstico más brutal de la modernidad que el tango produjo: 'el mundo fue y será una porquería / ya lo sé / en el quinientos seis / y en el dos mil también'. El cambalache es el almacén de ropa usada, la metáfora de una sociedad que mezcla lo sagrado con lo profano. El Bdim7 —el vii°7 de C menor— es la tensión irresuelble que el siglo XX nunca cerró.

Cambalache 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 G# (descending half step), G# to E (descending major third), E to D (descending whole step), D to C (descending whole step), C to G (descending perfect fourth). 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 G 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.