C# Blues on Vihuela

C# Blues runs 6 notes to the octave. Below it is mapped onto this instrument's A–D–G–B–E fretboard with every C# marked, because what a player needs mid-number is not the pattern but where the root is when the harmony moves under it.

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.

The armonía is not a soloing section, so a scale here is diagnostic rather than melodic: it is how a player finds which tones a grip is actually putting in the air on a neck whose octaves do not run in order.

Take it slowly against the playback until the geometry stops being geometry, then put it under a number in C# minor and let the written line pick its own notes out of it.