Todo Cambia in E

Todo Cambia in E

Julio Numhauser compuso 'Todo Cambia' en 1982; Mercedes Sosa la grabó en 1986 y la llevó a ser un himno de la nueva canción latinoamericana. 'Cambia todo cambia' —la filosofía del cambio continuo como única constante— resonó en toda América Latina durante las transiciones democráticas de los 80s. La voz de la Negra Sosa convirtió esta canción en un acto de resistencia y esperanza.

Todo Cambia in E

E major is arguably guitar's most powerful key. The open low E and high E strings ring sympathetically as the root, while the open B provides the fifth. This triple reinforcement gives E-based riffs and chords unmatched depth and volume. E is a beginner-level key on guitar because both the low E and high E strings ring as the root, and the open B is the fifth — three open strings reinforce the tonic chord. Beginners will find this key approachable since most chords use open voicings with minimal stretching.

Voice Leading

The bass line moves through E to B (descending perfect fourth), B to A (descending whole step), A to F# (descending minor third), F# to C# (descending 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 C# to E by minor third.

Scales for Improvisation

E 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, E Mixolydian adds the flat seventh for an authentic blues-rock edge.