A Spanish — Cuban Tres

A Spanish is 7 notes to the octave (world family), drawn here across the Cuban Tres's GCE courses with every A 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.

Three courses tuned GCE put a scale in a narrow, honest place: two or three notes to a course, no spare strings to hide on, and the G course sounding above the C beside it — so a run that looks like it descends on paper can rise under the fingers. These maps mark every root so the figure never loses home.

Practise it as a figure, not a ladder: pick four of its notes, loop them as a two-bar phrase against a slow pulse, then slide the same phrase to the next position. That is how this instrument actually uses a scale — as raw material for a repeating line.