C Melodic Minor — Puerto Rican Cuatro (Standard)

C Melodic Minor is 7 notes to the octave (common family), drawn here across the Puerto Rican Cuatro (Standard)'s B-E-A-D-G strings with every C marked, so home stays visible from anywhere in the pattern.

Minor at the bottom, major at the top — the b3 keeps it minor while the natural 6 and 7 lift the upper half into a smooth climb home. Bittersweet rather than dark, with a polished, modern-jazz sheen.

Heard in: Jazz lines over minor and altered chords, film scoring, and classical melodies rising to the tonic — Bach, Mozart, and bebop alike.

Five courses spanning a minor thirteenth give a scale room to breathe: three or four notes to a course in first position, and a top string clear enough that a melody can live there while the rest of the grip stays down. These maps light every root so a run knows where home is before it leaves.

Work it in one position before you work it up the neck. The doubled courses forgive nothing: a fret held half a millimetre short buzzes on one string of the pair and rings on the other, and that difference is audible long before the run is fast.