Mixolydian ♭6 guitar scale
See the Mixolydian ♭6 scale on a guitar fretboard, learn its notes and degrees, and practice it in any key.
What it is
The fifth mode of melodic minor: Mixolydian with a flat 6th. Dark, but with a dominant pull.
How to use it
Play it over a dominant chord with a flat 13th (7♭13), especially a V7 that moves to a minor chord.