C Mixolydian on Vihuela

C Mixolydian runs 7 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.

Major with a flatted 7th (b7) — bright and bluesy. The dominant chord turned into a tonal center with a rock/folk edge.

Heard in: "Sweet Home Chicago", "Norwegian Wood" (Beatles), Celtic and folk music — anywhere a major sound needs a darker, looser edge.

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 and let the written line pick its own notes out of it.