G Spanish — Venezuelan Cuatro

G Spanish is 7 notes to the octave (world family), drawn here across the Venezuelan Cuatro's A-D-F#-B strings with every G marked, so home stays visible from anywhere in the pattern.

Fiery and exotic — the b2 presses against the root while the major 3rd keeps it from sounding plainly minor. Flamenco heat with a Middle-Eastern edge: dramatic, urgent, and passionate.

Heard in: Flamenco and Spanish classical guitar, klezmer and "Hava Nagila", Arabic and Jewish liturgical music, metal riffs, and the V chord of harmonic minor.

Four strings inside a major sixth put a scale in a deliberately cramped place: the same pitch turns up on two strings constantly, and one open string sounds below the string next to it, so a run that looks like it climbs on paper can fall under the fingers. These maps light every root so the ear has an anchor.

Use it the way the music does — in short pieces, between strums. Very little of this repertoire asks a cuatrista for a long scalar run; what it asks for is three or four notes that land exactly where the strumming hand was about to brake.