F# Rock 'n' Roll on Vihuela

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

Major pentatonic with a b3 rubbed against the natural 3 — bright and bouncy with a bluesy smirk. Playful, swinging, and built for boogie riffs.

Heard in: Fifties rock, rockabilly, boogie-woogie, Chuck Berry-style riffs, and jump blues.

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 F# major or minor and let the written line pick its own notes out of it.