Sur in F

Sur in F

Aníbal Troilo y Homero Manzi compusieron 'Sur' en 1948 en una noche de desvelo; es el tango de los barrios del sur de Buenos Aires —San Telmo, La Boca, Barracas— y de todo lo que quedó atrás. 'Sur, paredón y después... / Sur, una luz de almacén.' Pocos versos en toda la poesía argentina capturan tanto con tan poco. El Dm oscila entre A7 y Gm con la inmutabilidad del barrio que no cambia; el puente en F mayor es la luz del almacén que Manzi describió.

Sur 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 perfect fourth), C to A# (descending whole step), A# to G# (descending whole step), G# to D# (descending perfect fourth), D# to C# (descending whole step). The predominantly stepwise bass motion creates smooth, connected voice leading. When the progression loops, the bass returns from C# to F by major third.

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.