Pedro Navaja in F
Pedro Navaja in F
Rubén Blades compuso 'Pedro Navaja' en 1978 para el álbum 'Siembra' con Willie Colón, el disco de salsa más vendido de la historia. La crónica de un machetero y una prostituta que se matan mutuamente en un callejón neoyorquino — con el comentario irónico de un borracho al final — es literatura pura: Gabriel García Márquez la comparó con el mejor periodismo. La progresión Fm-Db-C7 sobre montuno es el pulso de la salsa narrativa.
Pedro Navaja in F
F major is the gateway to barre chords. While F itself requires a full barre at fret 1, the remaining diatonic chords (C, Dm, Am, G, Bb) mix open and barre shapes. The open high E acts as Fmaj7's seventh, adding unexpected richness. F is a intermediate-level key on guitar because the open high E string is the major seventh of F, creating a lush Fmaj7 resonance even in basic shapes, but the F barre chord itself is the first big hurdle for beginners. This key mixes open and barre shapes, making it a good intermediate challenge that builds fretboard fluency.
Voice Leading
The bass line moves through F to C# (descending major third), C# to C (descending half step), C to G# (descending major third), G# to D# (descending perfect fourth). A half-step bass movement creates a strong leading-tone pull that demands resolution. 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 D# to F by whole step.
Scales for Improvisation
F 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, F Mixolydian adds the flat seventh for an authentic blues-rock edge.