A# Mixolydian — Dobro
Where A# Mixolydian sits on this chair's neck, roots marked.
A# Mixolydian runs 7 notes to the octave. Below it is laid onto this chair's GBDGBD neck with every A# marked, because what you need mid-break is not the pattern — it is where the root is when the chord changes under you.
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.
A dobro break is slid, not fretted: the bar travels to each note, so a scale here is a list of places the bar may stop on the way — and on open-G strings, the stops that ring against an open string are the ones the melody keeps coming back to.
Play it slowly against the audio until the shape stops being a shape, then take it to a tune in A# and let the melody pick its own notes out of it.