F# Blues — Venezuelan Cuatro

F# Blues is 6 notes to the octave (blues family), drawn here across the Venezuelan Cuatro's A-D-F#-B strings with every F# marked, so home stays visible from anywhere in the pattern.

The minor pentatonic with a b5 "blue note" wedged in — that one extra note adds grit, tension, and a sly, vocal quality. Tough, expressive, and unmistakably bluesy.

Heard in: Blues, rock, jazz, rhythm and blues, and boogie-woogie — Delta and Chicago blues, Hendrix, Clapton, Stevie Ray Vaughan.

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.