B mixolydian chordson the mandolin
Main chords: B (I), A (♭VII), E (IV)
The scale: B C♯ D♯ E F♯ G♯ A
Drones: No open course is in the B chord in this tuning; A and E fit the key. The courses are G D A E, low to high.
Capo 2: play it with A mixolydian shapes, and every open course is in the key.
Common progressions
- I – ♭VII – I: B – A – B
- I – IV – I – ♭VII: B – E – B – A (reels in D or A mix)
- I – ♭VII – IV – I: B – A – E – B (down and back home)
Basis: DADGAD Guitar blog (2009) and common session practice: the flat 7th's major chord (C in D mix) answers the tonic.