Son de la Loma in A
Son de la Loma in A
Miguel Matamoros y el Trío Matamoros compusieron 'Son de la Loma' alrededor de 1916 en Santiago de Cuba; la pregunta '¿Mamá yo quiero saber de dónde son los cantantes?' se convirtió en la frase más citada del son cubano. La sección A usa dominantes secundarios encadenados (A7→Dm, G7→Gm7→C7→F) con una sofisticación inusual para la época; Matamoros tenía formación musical clásica y la aplicó al son con resultados extraordinarios.
Son de la Loma in A
A major is a rock and blues cornerstone. The open A string delivers a strong root, while both E strings ring as the fifth. Classic A-D-E progressions practically play themselves with open cowboy chords. The open high E is the fifth, reinforcing power. A is a beginner-level key on guitar because the open A string is the root and the open E strings provide the fifth above and below, creating a massive low-end anchor. Beginners will find this key approachable since most chords use open voicings with minimal stretching.
Voice Leading
The bass line moves through A to C# (ascending major third), C# to F# (ascending perfect fourth), F# to B (ascending perfect fourth), B to B (ascending unison), B to E (ascending perfect fourth), E to D (descending whole step), D to B (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 B to A by whole step.
Scales for Improvisation
A 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, A Mixolydian adds the flat seventh for an authentic blues-rock edge.