La Puerta in E
La Puerta in E
Luis Demetrio compuso 'La Puerta' en 1957, y Trío Los Panchos junto a Eydie Gormé la convirtieron en uno de los boleros más grabados de la era de oro. La imagen de la puerta cerrada como metáfora del amor que se va es de una sencillez poética perfecta. Sobre Do mayor con la progresión I-V7-I, la melodía sube y baja con la dignidad del adiós.
La Puerta 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 C# (ascending whole step), C# to A (descending major third), A to F# (descending minor third). 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 E by whole step.
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.