D Aeolian — Triads
Three-note stacks of thirds, one per scale degree. The chord-quality pattern below is the Aeolian scale's diatonic harmony.
All 7 triads in sequence
Degree 1 · iDm
Degree 2 · ii°E dim
Degree 3 · IIIF
Degree 4 · ivGm
Degree 5 · vAm
Degree 6 · VIBb
Degree 7 · VIIC