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

E major harmonises to E – F#m – G#m – A – B – C#m – D#°; E minor to Em – F#° – G – Am – Bm – C – D. 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.