La Puerta in B

La Puerta in B

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 B

B major mixes barre and open elements. The B chord itself is a barre at fret 2, but E and A are comfortable open chords forming the IV and V. The open B string rings as the root, allowing creative drone-based arrangements. B is a intermediate-level key on guitar because the open B string rings as the root and the open E strings provide the 4th — useful for sus4 voicings and drone effects. This key mixes open and barre shapes, making it a good intermediate challenge that builds fretboard fluency.

Voice Leading

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

Scales for Improvisation

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