The minor 13th extends a minor 7th with the 13th (1–♭3–5–♭7–13). Smooth and sophisticated, it deepens minor harmony in jazz and soul.
NotesE · G · B · C♯ · D
Formula1 · ♭3 · 5 · 13 · ♭7
Every minor 13th chord tone across the neck. Solo with these and you spell the chord — that's the difference between running a scale and playing the changes.