C# Gypsy Major — Puerto Rican Cuatro (Antiguo A-D-G-C-F)

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

Brash and colorful — a #2 crushed against the major 3rd and a #4 give it a Lydian-dominant swagger with a Romani twist. Bold, spicy, and unpredictable.

Heard in: Hungarian and Romani folk, Bartok and Liszt, gypsy-jazz flourishes, and fusion lines over dominant chords.

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.