Obsesión in E
Obsesión in E
Pedro Flores, el puertorriqueño que redefinió el bolero, compuso 'Obsesión' en 1934. Es uno de los grandes boleros del repertorio hispanoamericano: 'por alto esté el cielo en el mundo, por hondo que sea el mar profundo'. Trío Los Panchos, Luis Miguel y cientos de intérpretes la han grabado. El Bbmaj7-Bbm del puente — el recurso de la sombra modal — da a este bolero en Fa mayor su dimensión de obsesión verdadera.
Obsesión 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 F# (ascending whole step), F# to B (ascending perfect fourth), B to G# (descending minor third), G# to C# (ascending perfect fourth), C# to A (descending major third), A to A (ascending unison). 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 E by perfect fourth.
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.