Progressions in F# — Puerto Rican Cuatro (Antiguo A-D-G-C-F)

F# major harmonises to F# – G#m – A#m – B – C# – D#m – E#°; F# minor to F#m – G#° – A – Bm – C#m – D – E. Each chord links to its Puerto Rican Cuatro (Antiguo A-D-G-C-F) grips, so a whole key becomes a short list of hand positions.

Most of this repertoire lives on three or four of these chords, and the interesting work is in what happens between them: the pick states a line, the grip lands underneath it, and the next change arrives before the ear has finished the last one.