D# Mixolydian Bebop on Guitarrón

D# Mixolydian Bebop runs 8 notes to the octave. Below it is mapped onto this instrument's A–D–G–C–E–A fingerboard with every D# marked, because what a player needs mid-number is not the pattern but where the root is when the harmony moves under it.

Mixolydian with a passing major 7th between the b7 and the octave — the bright, bluesy dominant sound with a chromatic slide that keeps every chord tone on a downbeat. Slick, swinging, and quintessentially bebop.

Heard in: Jazz lines over dominant seventh chords, blues changes, and rhythm changes — the workhorse bebop scale.

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