Progressions — Puerto Rican Cuatro (Standard)

Every key's diatonic chords, charted as real Puerto Rican Cuatro (Standard) grips. Pick a key below and its chord family arrives on B-E-A-D-G, ready to put behind a singer, under a melody instrument, or on its own.

A key here is worth learning as a set of hand positions rather than a list of names. On a B-E-A-D-G neck whose open strings spell G major pentatonic, the same roman numeral tends to land in the same region every time, and that regularity is most of what makes fast changes possible.