F# Minor Pentatonic on Guitarrón
Every F# Minor Pentatonic note across 6 strings, roots flagged, read as bass material.
F# Minor Pentatonic runs 5 notes to the octave. Below it is mapped onto this instrument's A–D–G–C–E–A fingerboard 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.
Gritty, bluesy, and direct — five notes with no half steps, so each one lands with attitude over a minor or dominant chord. The sound of rock and blues lead playing.
Heard in: Blues, rock, hard rock, metal, funk, and soul solos — the first scale most lead players learn and the one they never leave.
The bass takes almost no melodic line, and that is precisely why these matter: the notes between one root and the next come out of a scale, and an approach that lands wrong is the loudest wrong note in the ensemble.
Take it slowly against the playback until the geometry stops being geometry, then put it under a number in F# minor and let the written line pick its own notes out of it.