D Mixolydian, Mandolin Side
Where D Mixolydian lies on this reader's fretboard, and what it is for.
7 notes to the octave, mapped below onto this reader's GDAE fretboard, with every D called out. Those markers are the useful part mid-bar: a chart moves under you, and the thing you need is where the root went — not where the pattern started.
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.
Between chopping one number and chopping the next there is a beat and a half of nothing written down, and what goes in it is a fill drawn from here rather than from the page.
Play it slowly against the audio until the shape stops being a shape, then take it to a chart counted in D and let the numbers pick their own notes out of it.